Natural Regions of the World ICSE Class 9: Climate, Vegetation and People

What Natural Regions of the World is about

Weightage: CISCE publishes no chapter weightage and no question-paper layout for ICSE Class 9 Geography. Class IX is examined by your school: one 80-mark paper of 2 hours plus 20 marks of internal assessment (a record file and one project). Natural Regions of the World is topic 6 of the 2028 syllabus; topic 7 (map work) asks you to mark these regions on a world map.Source: CISCE ICSE 2028 Geography syllabus, Class IX

Key concepts

Equatorial region

Location and area: roughly 0° to 10° north and south of the equator: the Amazon basin (South America), the Congo (Zaire) basin and the coast of the Gulf of Guinea (Africa), and Malaysia, Indonesia and nearby islands (South-East Asia).

Climate: hot and wet throughout the year. Average temperature about 27 °C every month, so the annual range is very small (about 2-3 °C); there is no winter. Rainfall is heavy, usually over 200 cm a year, spread over all months, mainly convectional rain falling in afternoon thunderstorms. Humidity is very high.

Natural vegetation: tropical evergreen rainforest (selvas in the Amazon). Very dense, tall hardwood trees such as mahogany, ebony and rosewood grow in layers, forming a thick canopy that keeps the forest floor dark. Climbers (lianas) and epiphytes are common. Trees shed leaves at different times, so the forest is always green. Hardwoods are difficult to log because many species grow mixed together.

Human adaptation:

• Forest peoples such as the Mbuti (often called Pygmies) of the Congo basin and Amerindian groups of the Amazon live by hunting, gathering and fishing, using light shelters of leaves and branches and few clothes.
• Shifting cultivation ('slash and burn') of cassava, yams and maize.
• Commercial plantations of rubber and oil palm (Malaysia, Indonesia) and cocoa (West Africa).
• Heat, humidity, disease and dense forest make life difficult; rivers are the main routes.

Worked example

(3 marks) Describe the climate of the equatorial region and explain why it has no seasons.

Try it first, then show the solutionSolution

1. Hot all year (about 27 °C), annual range only about 2-3 °C - 1 mark.
2. Heavy rain (over 200 cm) every month, convectional, with afternoon thunderstorms - 1 mark.
3. No seasons because the midday sun is nearly overhead all year, so temperatures stay almost constant - 1 mark.

Answer: The equatorial region is hot and wet all year, with average temperatures of about 27 °C, an annual range of only 2-3 °C, and heavy convectional rainfall of over 200 cm spread through every month. It has no real seasons because the sun is nearly overhead at noon throughout the year.

Tropical grasslands (savanna)

Location and area: between the equatorial forests and the hot deserts, roughly 5°-10° to 20° north and south: the Sudan region and the East African plateau (Africa), the Llanos of the Orinoco basin (Venezuela) and the Campos of the Brazilian Highlands (South America), and northern Australia.

Climate: hot all year, with two seasons: a hot, wet summer (rain when the sun is overhead) and a warm, dry winter. Rainfall is moderate and decreases towards the deserts. The annual range of temperature is larger than in the equatorial region.

Natural vegetation: tall, coarse grass (in places taller than a person) with scattered trees; the trees are drought-resistant, such as umbrella-shaped acacias and the baobab, which stores water in its thick trunk. The grass dries and turns brown in the dry season. Savannas are home to large herds of grass-eaters (zebras, antelopes, giraffes, elephants) and predators (lions, cheetahs).

Human adaptation:

• The Maasai of Kenya and Tanzania are nomadic or semi-nomadic cattle herders who move with the seasons in search of grass and water; cattle are a measure of wealth.
• The Hausa of northern Nigeria are settled farmers growing millets, groundnuts and cotton.
• Commercial cattle rearing in northern Australia and the Campos; game reserves and safari tourism in East Africa.

Worked example

(2 marks) How are the trees of the savanna adapted to the climate?

Try it first, then show the solutionSolution

1. The long dry season means trees must survive drought - 1 mark.
2. Acacias have small leaves and deep roots; the baobab stores water in its thick trunk; many shed leaves in the dry season - 1 mark.

Answer: Savanna trees must survive a long dry season. Acacias have small leaves and deep roots, many trees shed their leaves when it is dry, and the baobab stores water in its thick trunk.

Tropical (hot) deserts

Location and area: on the western sides of continents between about 15° and 30° north and south: the Sahara (North Africa), the Arabian desert, the Thar (India-Pakistan), the Kalahari and Namib (southern Africa), the Atacama (Chile), the Great Australian deserts, and the deserts of the south-western USA and Mexico.

Why deserts form here: dry sinking air of the sub-tropical high-pressure belts; offshore trade winds that have lost their moisture; cold ocean currents along the coasts that cool the air and prevent rain.

Climate: very hot summer days (often over 40 °C) and cool or even cold nights, because the dry, cloudless air lets heat escape quickly: a very large daily (diurnal) range. Rainfall is scanty (under 25 cm a year) and unreliable, often in sudden bursts. Very low humidity, strong winds and sandstorms.

Natural vegetation: scattered xerophytes (drought-resistant plants): cacti, thorny bushes, coarse grass and date palms at oases. Adaptations: long roots to reach groundwater, thick waxy skins and spines instead of leaves to reduce water loss, and fleshy stems that store water.

Human adaptation:

• Nomadic herders such as the Bedouins of Arabia and the Tuaregs of the Sahara rear camels, goats and sheep, moving between oases; they wear loose, flowing robes and head-cloths for protection from sun and sand, and live in tents.
• The San (Bushmen) of the Kalahari were traditionally hunter-gatherers.
• Settled farming at oases (dates, wheat) and with irrigation (the Nile valley; the Indira Gandhi Canal in the Thar).
• Mining and oil (Arabia, Libya, Algeria) have brought modern towns.

Worked example

(3 marks) Give three reasons why hot deserts are found on the western margins of continents between 15° and 30° latitude.

Try it first, then show the solutionSolution

1. Sub-tropical high-pressure belt: dry, sinking air prevents rain - 1 mark.
2. Trade winds blow from the east and are offshore and dry on western coasts - 1 mark.
3. Cold ocean currents cool the air and prevent rain - 1 mark.

Answer: (1) These latitudes lie in the sub-tropical high-pressure belt, where dry air sinks and does not form clouds. (2) The trade winds blow from the east and have lost their moisture by the time they reach the western sides, where they blow offshore. (3) Cold currents along the western coasts cool the air above them, preventing rain.

Tropical monsoon region

Location and area: roughly between 10° and 25°-30° north and south of the equator, mainly in South and South-East Asia: India, Pakistan (in part), Bangladesh, Myanmar, Thailand, Laos, Cambodia, Vietnam and southern China; also northern Australia.

Climate: three seasons, controlled by the seasonal reversal of winds:

• Hot, dry summer before the rains (March to May in India).
• Hot, wet season when moist onshore monsoon winds bring heavy rain (June to September in India).
• Cool, dry winter with offshore winds (December to February).

Rainfall varies greatly: very heavy on windward slopes (Western Ghats, Khasi Hills) and light in rain-shadow areas; it is also uncertain, so floods and droughts occur.

Natural vegetation: tropical deciduous (monsoon) forests, whose trees shed their leaves in the dry season to save water. Useful hardwoods: teak, sal, sandalwood, shisham; also bamboo. Thorny scrub in drier areas.

Human adaptation:

• Among the most densely populated parts of the world, supported by fertile river plains and monsoon rain.
• Agriculture is the main occupation: rice in wet areas, wheat, millets, pulses and cotton in drier ones; jute, sugarcane and tea are important cash crops.
• Farming calendars follow the monsoon (kharif crops sown with the rains); irrigation and dams store water against failure of rains.
• Houses with sloping roofs in very wet areas; festivals linked to sowing and harvest.

Worked example

(3 marks) Why do trees of the tropical monsoon forests shed their leaves? Name two valuable trees.

Try it first, then show the solutionSolution

1. The region has a long dry season before the rains - 1 mark.
2. Trees shed leaves to reduce loss of water by transpiration - 1 mark.
3. Valuable trees: teak, sal, sandalwood (any two) - 1 mark.

Answer: The monsoon region has a long dry season, so the trees shed their leaves to reduce water loss by transpiration; they are therefore called deciduous. Teak and sal are two valuable trees of these forests.

Mediterranean region

Location and area: on the western sides of continents between about 30° and 45° north and south: the lands around the Mediterranean Sea (southern Europe, North Africa, western Asia), central California (USA), central Chile, the south-western tip of South Africa (around Cape Town), and south-western and southern Australia (around Perth and Adelaide).

Climate: hot, dry summers and mild, wet winters. In summer the sub-tropical high-pressure belt shifts over the region, bringing dry, sunny weather with offshore trade winds. In winter the belts shift towards the equator, and the westerlies bring rain from cyclones. Rainfall is moderate and falls mainly in winter, a feature found in no other natural region. Plenty of sunshine.

Natural vegetation: evergreen trees and shrubs adapted to summer drought, with small, thick, leathery or waxy leaves and thick bark: cork oak, olive, laurel, cedar and pines; eucalyptus in Australia. In many areas there is a scrub of aromatic bushes (maquis in southern Europe, chaparral in California).

Human adaptation:

• Known as the 'orchard lands of the world': citrus fruits (oranges, lemons), grapes for wine, olives, figs and dates are grown, with irrigation in the dry summer.
• Wheat and barley grown in the wet winter.
• Sunny summers attract tourists to beaches (Spain, Italy, Greece, California).
• Houses with thick walls, small windows and white paint keep interiors cool.

Worked example

(3 marks) Explain why the Mediterranean region receives rain in winter but not in summer.

Try it first, then show the solutionSolution

1. Summer: the sub-tropical high-pressure belt shifts over the region; dry sinking air, offshore winds - 1 mark.
2. Winter: belts shift towards the equator; the region comes under the westerlies - 1 mark.
3. The westerlies blow onshore and bring cyclones, giving winter rain - 1 mark.

Answer: In summer the pressure belts shift polewards and the sub-tropical high, with dry sinking air and offshore winds, lies over the region, so it is dry. In winter the belts shift towards the equator and the region comes under the onshore westerlies, whose cyclones bring rain.

Temperate grasslands

Location and area: in the interiors of continents in middle latitudes, roughly 30°-40° to 55° north and south, far from the moderating influence of the sea:

• Prairies of North America (USA and Canada).
• Steppes of Eurasia (Ukraine, Russia, Kazakhstan).
• Pampas of Argentina and Uruguay.
• Veld of South Africa.
• Downs of Australia (Murray-Darling basin).
• Canterbury Plains of New Zealand.

Climate: continental (extreme). In the northern grasslands summers are warm to hot and winters very cold, with snow; the annual range of temperature is large. Southern-hemisphere grasslands are milder because the continents are narrower and the sea is nearer. Rainfall is light to moderate (too little for forests), falling mainly in spring and early summer. The warm Chinook wind melts snow on the Prairies.

Natural vegetation: short, soft, nutritious grass, almost treeless; trees grow only along rivers. The grass grows in spring and dries in late summer.

Human adaptation:

• Formerly nomadic herders, such as the Kirghiz of the Asian steppes, who lived in portable felt tents (yurts) and moved with their horses and sheep.
• Today these are the 'granaries of the world': large, highly mechanised wheat farms (Prairies, Steppes, Pampas, Downs).
• Extensive cattle ranching for beef (Pampas, Prairies) and sheep rearing for wool and meat (Australian Downs, Canterbury); dairying.
• Thinly populated farms; railways and grain elevators carry wheat to ports.

Worked example

(3 marks) Why are temperate grasslands called the 'granaries of the world'?

Try it first, then show the solutionSolution

1. Vast, flat, treeless land is easy to plough with machines - 1 mark.
2. Fertile soil rich in humus from decayed grass and moderate rainfall in the growing season suit wheat - 1 mark.
3. Large mechanised farms produce huge wheat surpluses for export (Prairies, Pampas, Steppes) - 1 mark.

Answer: Their vast, level, treeless plains are easy to plough with machines; the soils are fertile and rich in humus from decayed grass; and the rainfall in spring and early summer suits wheat. So huge mechanised farms grow large surpluses of wheat for export, as in the Prairies, Pampas and Steppes.

Taiga (coniferous forest) and tundra

Taiga
Location and area: a broad belt across the northern hemisphere between about 50°-55° and 65°-70°N: northern Canada and Alaska, Scandinavia, Finland and Siberia. It is absent in the southern hemisphere because there is no large land mass in these latitudes.
Climate: long, extremely cold winters, with temperatures far below freezing for several months, and short, cool summers; very large annual range. Precipitation is low, much of it as snow.
Natural vegetation: coniferous evergreen forest of softwoods (pine, fir, spruce, larch) in pure stands of one or two species. Adaptations: conical shape so that snow slides off; needle-shaped, waxy leaves that reduce water loss when the ground is frozen; evergreen, so trees can use the short summer at once.
Human adaptation: lumbering is the main occupation; softwoods are floated down rivers in spring and used for paper, pulp, newsprint and furniture (Canada, Sweden, Finland, Russia). Fur trapping (mink, sable) and mining; hydroelectric power. Population is sparse.

Tundra
Location and area: north of the taiga, along the coasts of the Arctic Ocean: northern Canada and Alaska, the coasts of Greenland, northern Scandinavia and northern Russia.
Climate: very long, bitterly cold winters with weeks of darkness, and short, cool summers when the warmest month stays below about 10 °C, with weeks of continuous daylight (midnight sun). Subsoil permanently frozen (permafrost). Precipitation is very low, mostly snow; strong, cold winds.
Natural vegetation: no trees; mosses, lichens, sedges and dwarf shrubs (dwarf willow, birch) grow in the brief summer. Animals include reindeer (caribou), polar bears, Arctic foxes, seals and walruses.
Human adaptation: the Inuit of Canada and Greenland traditionally hunted seals, walrus and caribou and fished; they used fur clothing, igloos (snow houses) for winter hunting trips, kayaks and dog sledges; their diet was mainly meat and fat. The Sami (Lapps) of northern Scandinavia herd reindeer, and the Yakuts live in Siberia. Today snowmobiles, permanent settlements, mining and oil (Alaska, northern Russia) have changed life.

Worked example

(3 marks) Give three ways in which coniferous trees of the taiga are adapted to the climate.

Try it first, then show the solutionSolution

1. Conical shape: snow slides off without breaking branches - 1 mark.
2. Needle-shaped, waxy leaves reduce water loss when the ground is frozen - 1 mark.
3. Evergreen: can photosynthesise as soon as the short summer begins - 1 mark.

Answer: Coniferous trees are conical, so heavy snow slides off without breaking branches; they have thin, needle-shaped, waxy leaves that reduce water loss when the soil is frozen; and they are evergreen, so they can start making food as soon as the short summer begins.

Natural Regions of the World in real life

Each concept, met in an everyday situation. Read the situation, answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Topics in this chapter

• Temperate and Cold Regions: Mediterranean, Temperate Grasslands, Taiga and Tundra
• Tropical Natural Regions: Equatorial, Savanna, Hot Desert and Monsoon

Natural Regions of the World: key facts

Locations (latitudes)

Equatorial	0°-10°
Savanna	5°-10° to 20°
Hot deserts	15°-30° (west)
Monsoon	10°-30° (S and SE Asia)
Mediterranean	30°-45° (west)
Temperate grasslands	30°-40° to 55° (interiors)
Taiga	50°-55° to 65°-70°N
Tundra	beyond, along the Arctic

Approximate; both hemispheres except taiga and tundra.

Rain season fingerprints

All year: equatorial. Summer: savanna, monsoon, temperate grassland. Winter: Mediterranean. Very little: desert, tundra

Use for climate-data questions.

Vegetation

Equatorial	evergreen rainforest
Savanna	tall grass, acacia, baobab
Hot deserts	xerophytes
Monsoon	deciduous teak, sal
Mediterranean	evergreen leathery (olive, cork oak)
Temperate grasslands	short grass
Taiga	conifers
Tundra	mosses and lichens

In region order.

People

Mbuti; Maasai, Hausa; Bedouins, Tuaregs, San; rice farmers; fruit growers; Kirghiz, wheat farmers; lumbermen; Inuit, Sami

Human adaptation examples.

Climate-data reading

$Annualrange=warmestmonth-coldestmonth;totalrainfall=sumof12months$

Range < 3 °C and rain > 200 cm → equatorial.

How the school exam asks Natural Regions of the World

The question patterns to expect, and the method that works for each.

Tricks to remember Natural Regions of the World

Short memory aids. Say each one aloud once, then use it on a question the same day.

• Every Tired Traveller Takes Many Tea-breaks Till Tonight

  Equatorial, Tropical grassland, Tropical desert, Tropical monsoon, Mediterranean, Temperate grassland, Taiga, Tundra.

  Use it when: Order of the eight regions from equator to pole.

• PSPVD

  Temperate grasslands: Prairies, Steppes, Pampas, Veld, Downs ('Please Send Pizza Very Daily').

  Use it when: Local names.

• West side, winter rain

  Mediterranean lands lie on the West side and get Winter rain.

  Use it when: Mediterranean location and climate.

Natural Regions of the World: exam-level solved questions

Ordered from exam level to HOTS. Cover the solution, write your own, then compare step by step.

Case-study practice (Section B style)

Read the situation, then answer every part. In a school exam set on the board pattern this is a 8-mark question split into 2 + 3 + 3 marks.

Where the marks are

How a typical answer is split into step marks. Show every step: a right final answer alone rarely earns full marks.

Where students lose marks in Natural Regions of the World

The slips examiners see most often, and what to write instead.

• ✗Mistake: Placing hot deserts on eastern coasts

  Location rule not understood.

  Wrong working

  Hot deserts are found on the eastern sides of continents near the tropics.

  Right working

  Hot deserts lie on the western sides, where trade winds are offshore and cold currents flow.

  ✓Do this: Learn the reasons, not just the rule.

  Usually costs: 1 to 2 marks.

• ✗Mistake: Giving summer rain for the Mediterranean

  Generalising from India's monsoon.

  ✓Do this: Mediterranean: dry summer, wet winter (westerlies).

  Usually costs: 1 mark.

• ✗Mistake: Mixing up local names of grasslands

  Many similar names.

  ✓Do this: Tropical: Llanos, Campos, savanna. Temperate: Prairies, Steppes, Pampas, Veld, Downs.

  Usually costs: 1 mark each.

• ✗Mistake: Human adaptation written without linking to climate

  Facts about people listed alone.

  ✓Do this: Say why: Inuit hunt because crops cannot grow on frozen ground.

  Usually costs: 1 mark per point.

• ✗Mistake: Annual range calculated wrongly with negative temperatures

  Subtracting signs carelessly.

  Wrong working

  18 − (−25) = −7 °C.

  Right working

  18 − (−25) = 18 + 25 = 43 °C.

  ✓Do this: Subtracting a negative number means adding.

  Usually costs: 1 mark.

Practice questions on Natural Regions of the World

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

1. Q1 · 1 mark · MCQExam level

   The tropical grasslands of Venezuela are called:
   (a) Campos
   (b) Llanos
   (c) Pampas
   (d) Downs

   Hint

   Orinoco basin.

   Answer

   (b) Llanos.

2. Q2 · 1 mark · MCQExam level

   Lumbering is the main occupation of the:
   (a) tundra
   (b) taiga
   (c) savanna
   (d) hot desert

   Hint

   Softwoods.

   Answer

   (b) taiga.

3. Q3 · 2 marks · Very short answerHarder exam level

   Name the natural vegetation of the tundra and explain why trees cannot grow there.

   Hint

   Permafrost, short summer.

   Answer

   Mosses, lichens, sedges and dwarf shrubs. Trees cannot grow because the subsoil is permanently frozen (permafrost), summers are too short and cool (warmest month below about 10 °C), and strong winds blow.

4. Q4 · 2 marks · Very short answerExam level

   Give the location of the Mediterranean region with four examples.

   Hint

   West, 30°-45°.

   Answer

   Western margins of continents between about 30° and 45° N and S: lands around the Mediterranean Sea, central California, central Chile, the Cape region of South Africa and south-western Australia.

5. Q5 · 2 marks · Very short answerHarder exam level

   How are desert plants adapted to scarcity of water?

   Hint

   Roots, leaves, stems.

   Answer

   They have long roots to reach deep groundwater; spines or small, waxy leaves to reduce transpiration; and fleshy stems (as in cacti) that store water.

6. Q6 · 2 marks · Very short answerHarder exam level

   Why do the Maasai move from place to place?

   Hint

   Wet and dry seasons.

   Answer

   They are cattle herders in the savanna, where grass and water are plentiful in the wet season but scarce in the dry season, so they move with their herds in search of fresh pasture and water.

7. Q7 · 2 marks · Very short answerHarder exam level

   Compare the climate of the tropical monsoon and Mediterranean regions on two points.

   Hint

   Rain season.

   Answer

   (1) The monsoon region gets rain in summer from onshore monsoon winds; the Mediterranean gets rain in winter from the westerlies. (2) The monsoon region has hot summers and warm to cool winters with three seasons; the Mediterranean has hot dry summers and mild wet winters.

8. Q8 · 2 marks · Very short answerHarder exam level

   Explain why the temperate grasslands are almost treeless.

   Hint

   Rainfall and winters.

   Answer

   Rainfall is too light for forests and falls mostly in spring and early summer; winters are very cold with frozen ground (in the north), and frequent grass fires and grazing prevent tree seedlings from growing.

9. Q9 · 3 marks · Short answerHOTS / competency

   Rainforest is being cleared for oil palm plantations in South-East Asia. Evaluate one benefit and two harmful effects.

   Hint

   Income vs environment.

   Answer

   Benefit: plantations provide employment and export income. Harm: (1) loss of biodiversity and habitat of animals such as orangutans; (2) burning and clearing release carbon dioxide (adding to global warming) and expose the soil to heavy rain, causing erosion and loss of fertility.

10. Q10 · 3 marks · Short answerHOTS / competency

    Why are both the hot deserts and the tundra called 'deserts' though one is hot and the other cold?

    Hint

    Water available to plants.

    Answer

    Both receive very little precipitation (under 25 cm a year), so little water is available for plants. In hot deserts water evaporates quickly; in the tundra it is locked as ice and permafrost for most of the year. In both, vegetation is sparse and population thin.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1. 1.Temperate grasslands of Argentina?Show answer

   Pampas.

2. 2.Trees of the tropical monsoon forests?Show answer

   Teak, sal, sandalwood (deciduous).

3. 3.Herders of camels in the Sahara?Show answer

   Tuaregs (Bedouins in Arabia).

4. 4.Season of rain in the Mediterranean region?Show answer

   Winter.

5. 5.Region called the 'granaries of the world'?Show answer

   Temperate grasslands.

6. 6.Permanently frozen subsoil of the tundra?Show answer

   Permafrost.

Quick revision checklist

The night before the exam: can you do each of these without looking?

• ☐Equatorial: 0°-10°; 27 °C all year, rain > 200 cm; evergreen rainforest; Mbuti, plantations.
• ☐Savanna: tall grass, acacia, baobab; wet summer, dry winter; Maasai herders, Hausa farmers.
• ☐Hot deserts: west sides 15°-30°; < 25 cm rain, large daily range; xerophytes; Bedouins, Tuaregs, oases.
• ☐Monsoon: seasonal wind reversal, summer rain; teak, sal; rice farming, dense population.
• ☐Mediterranean: west sides 30°-45°; dry summer, wet winter; olive, cork oak; fruit orchards.
• ☐Temperate grasslands: Prairies, Steppes, Pampas, Veld, Downs; wheat and ranching. Taiga: conifers, lumbering. Tundra: mosses, permafrost; Inuit, Sami.

Natural Regions of the World: frequently asked questions