Page 138 - SST Class 07

3. Describe evergreen forests in temperate and tropical regions.
4. Where do we find the Mediterranean forests? What are the chief varieties of trees here?

5. Tropical evergreen forests are also called rainforests. Why?
6. What type of trees are found in desert vegetation?
F. Answer the questions in detail :

1. What do you understand by natural vegetation?
2. What is the difference between tropical evergreen forests and tropical deciduous forests?
3. What do you understand by grasslands? Explain with the help of two examples.
4. What do you understand by tundra vegetation?
5. Why are forests not found in deserts?

6. Write a short note on coniferous forests.

1. How does destruction of forests create numerous environmental disasters?
2. Grasslands are extensively used for farming and animal rearing. What factors do you think account
for this?

Natural Vegetation, Wildlife and Man
Man is the only living being who can modify change to the environment. Sadly enough, he has used his
power of modification in a negative manner, it has caused a havoc to the environment. He has cut
down trees and cleared the forests only to grow his food, construct buildings and roads, lay railways and
cables, and meet many more needs. As he has interfered with natural vegetation, so has he done with
wildlife. He has domesticated and reared a large number of animals for his personal uses. He uses
many animals for transport and also keeps animals for recreation and security. However, his greed was
not satisfied with these. So, he thought that hunting was a good means of recreation, so he hunted out
a large number of wild animals. Many species have be come extinct or critically endangered due to his
reckless ways.

Contemporary Social Science-7
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