6355a126-8f66-4178-96cb-701100eae04c_t

NCERT Textbooks (Class 6 to Class 12)

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Class 7 : 6355a126-8f66-4178-96cb-701100eae04c_t

The document 6355a126-8f66-4178-96cb-701100eae04c_t is a part of the Class 7 Course NCERT Textbooks (Class 6 to Class 12).
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NCERT Solution for Class 7, SST( Geography-Our Environment), Chapter 6 - Natural Vegetation and Wildlife

Q.1 : Answer the following questions.

(i) Which are the two factors on which the growth of vegetation mostly depends?

ANS : Temperature and moisture are the two factors on which the growth of vegetation mostly depends.

(ii) Which are the three broad categories of natural vegetation?

ANS : The three broad categories of natural vegetation are forests, grasslands and shrubs.

(iii) Name the two hardwood trees commonly found in tropical evergreen forest.

ANS : Rosewood and ebony are hardwood trees commonly found in tropical evergreen forests.

(iv) In which part of the world are tropical deciduous forests found?

ANS : Tropical deciduous forests are monsoon forests found in large parts of India, Northern Australia and Central America.

(v) In which climatic conditions are citrus fruits cultivated?

ANS : Citrus fruits are cultivated in Mediterranean climate, i.e., regions experiencing hot, dry summers and mild, rainy winters.

(vi) Mention the uses of coniferous forest.

ANS : Coniferous forests are home to softwood trees. The woods of these trees are used for making pulp, which is used for manufacturing paper and newsprint. Match boxes and packing boxes are also made from softwood.

(vii) In which part of the world is seasonal grassland found?

ANS : Seasonal grasslands or temperate grasslands are found in the mid-latitudinal zones and in the interior parts of continents. 

Q.2 : Tick the correct answer.

(i) Mosses and lichens are found in

(a) Desert Vegetation

(b) Tropical evergreen forest

(c) Tundra vegetation

ANS :(c) Tundra vegetation 

6355a126-8f66-4178-96cb-701100eae04c_t

Tundra Vegetation

(ii) Thorny bushes are found in

(a) Hot and humid tropical climate

(b) Hot and dry desert climate

(c) Cold polar climate

Ans. Hot and dry desert climate

(iii) In tropical evergreen forest, one of the common animals is

(a) Monkey

(b) Giraffe

(c) Camel

Ans. Monkey

(iv) One important variety of coniferous forest is

(a) Rosewood

(b) Pine

(c) Teak

Ans, Pine

(v) Steppe grassland is found in

(a) S. Africa 

(b) Australia 

(c) Russia 

Ans. (c) Russia 


Q.3 : Match the following.                                                                                                        

            

(i) Walrus

            
            

(a) Softwood tree

            
            

(ii) Cedar

            
            

(b) An animal of tropical deciduous forest

            
            

(iii) Olives

            
            

(c) A polar animal

            
            

(iv) Elephant

            
            

(d) Temperate grassland in Australia

            
            

(v) Campos

            
            

(e) Thorny shrubs

            
            

(vi) Downs

            
            

(f) A citrus fruit

            
            

-

            
            

(g) Tropical grassland of Brazil

            


Ans.                                                                         

            

(i) Walrus

            
            

(c) A polar animal

            
            

(ii) Cedar

            
            

(a) Softwood tree

            
            

(iii) Olives

            
            

(f) A citrus fruit

            
            

(iv) Elephant

            
            

(b) An animal of tropical deciduous forest

            
            

(v) Campos

            
            

(g) Tropical grassland of Brazil

            
            

(vi) Downs

            
            

(d) Temperate grassland in Australia

            


Q.4 : Give reasons.

(i) The animals in Polar region have thick fur and thick skin.

(ii) Tropical deciduous trees shed their leaves in the dry season.

(iii) The type and thickness of vegetation changes from place to place.

ANS : 

(i) The Polar region is characterized by extremely cold weather. The animals found in this region have thick fur and thick skin to protect themselves from the cold climatic conditions.

(ii)The tropical deciduous trees are found in regions characterized by seasonal changes. The trees shed their leaves in the dry season to conserve water.

6355a126-8f66-4178-96cb-701100eae04c_t

Fig: Tropical Deciduous Trees

(iii)Growth of vegetation depends upon factors like temperature, moisture, slope and thickness of soil. Due to the variations in these factors from place to place, the type and thickness of vegetation also varies from place to place.

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