Class-9 Social Science : Natural Vegetation and Wild Life

Natural Vegetation and Wild Life

Quick Revision Points 


Different types of trees, bushes, grasses, birds, bio-forms. India a mega bio-diversity country.

Natural Vegetation

A plant community which has grown naturally without human aid and has been left undisturbed for a long time.

Flora 
To denote plants of a particular region or period.

Fauna
Species of Animals.

Factors for huge diversity in flora and fauna kingdom
  1.  Land, Soil
  2. Temperature
  3. Photo-period ( Sunlight )
  4. Precipitation and ecosystem
Biome
A very large ecosystem on land having distinct types of vegetation and animal life. Identification on the basis of plants.

Types of Vegetation 
  1. Tropical Rain Forests
  2. Tropical Deciduous Forests 
  3. Tropical Thorn Forests and scrubs
  4. Montane Forests
  5. Mangrove Forests
Wildlife
  1. 89,000 species of animal 
  2. 1200 species of birds 
  3. 2500 species of fish etc.
  4. Wildlife Protection Act, 1972.
Major threat to nature
  1. Hunting by greedy hunters
  2. Pollution
  3. Reckless cutting of trees.
Steps to Protect the flora and fauna
  1. 14 biosphere reserves
  2. Financial and technical assistance
  3. Project Tiger
  4. Project Rhino
  5. Project Great Indian Bustard
  6. 89 National Parks
  7. 49 Wild life Sanctuaries and Zoological Gardens.

Important Questions

1) Ques. What is natural vegetation? Why is cultivated crops are not natural vegetation ?

2) Ques. How are the habitat of camels and  those of horned rhinoceros diametrically opposite to each other? 

3) Ques. Why are forests important for Human beings?

4) Ques. What are the factors responsible for the distribution of plants and animals in India?

5) Ques. What is a Biosphere? Give two examples.

6) Ques. Distinguish between :
               (i)  Flora and Fauna 
               (ii) Tropical Evergreen Forests and Tropical Deciduous Forests.
               (iii) Dry Deciduous and Moist Deciduous. 

7) Ques. Why has India a rich heritage of flora and fauna?

8) Ques. Why few species of plants and animals are endangered in India ?

9) Ques. Describe the vegetation found in India at high altitude.

10) Ques. Why are the western slopes of the western Ghats covered with thick forests and not eastern   slopes?





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Class - 9 Social Science