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CBSE Class 9 Social Studies Worksheet

Geography - Natural vegetation and wild life

1.
State true or false: Moist and dry are two types of deciduous forests.
A) true B) false
2.
What type of forests are found between a height of 1000 and 2000 meters in mountainous areas?
3.
State true or false: Pine, deodar are coniferous trees.
A) true B) false
4.
Fill in the blanks: The tropical evergreen forests are at their best in areas having more than ___ cm of rainfall with a short dry season.
5.
In which regions are the thorny trees and bushes found?
6.
State true or false: The fertile land is generally devoted to agriculture.
A) true B) false
7.
What are the uses of babool?
8.
State true or false: In mountainous areas, the decrease in temperature with increasing altitude leads to the corresponding change in natural vegetation.
A) true B) false
9.
State true or false: There is no role of insects in the ecosystem.
A) true B) false
10.
State true or false: Chemical and Industrial waste are one of the causes of ecological imbalance.
A) true B) false
11.
Name two plant species of tundra vegetation.
12.
Name few commercially important evergreen trees.
13.
State true or false: In the Ganga-Brahmaputra delta, sundari trees are found, which provide durable hard timber.
A) true B) false
14.
Explain biome.
15.
Name the main plant species in thorn forests and scrubs.
16.
What is the annual average temperature in alpine vegetation zone?
17.
What is jamun seed used for?
18.
How have the trees adapted themselves to the dry-arid areas in thorn forests?
19.
Name some common animals of the montane forests.
20.
State true or false: Insects help in pollination of crops and fruit trees.
A) true B) false

CBSE Class 9 Social Studies Worksheet

Geography - Natural vegetation and wild life

Answers

1.
Option A

2.
Wet temperate type of forests where evergreen broad-leaf trees like oaks and chestnuts predominate
3.
Option A

4.
200
5.
In regions with less than 70 cm of rainfall- semi-arid areas of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh and Haryana.
6.
Option A

7.
Its leaves are used as a cure for eye sores. Its gum is used as a tonic.
8.
Option A
9.
Option B
10.
Option A

11.
Mosses and lichens
12.
Ebony, mahogany, rosewood, rubber and cinchona.
13.
Option A

14.
A very large ecosystem on land having distinct types of vegetation and animal life is called a biome.
15.
Acacias, palms, euphorbias and cacti.
16.
7 degree C
17.
It is used for controlling diabetes.
18.
Roots are long penetrating deep into soil in order to get moisture, stems are succulent to conserve water and leaves are mostly thick and small to minimize evaporation.
19.
Kashmir stag, spotted deer, wild sheep, jack rabbit, Tibetan antelope, yak, snow leopard, squirrels, shaggy horn wild ibex, bear and rare red panda, sheep and goats with thick hair.
20.
Option A

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