Answer the following questions briefly.
(i) Define an ecosystem.
(ii) What factors are responsible for the distribution of plants and animals in India?
(iii) What is a bio-reserve? Give two examples.
(iv) Name two animals having habitat in tropical and montane type of vegetation.
(a) Which winds bring rainfall in India? Why is it so important?
(b) Name the different seasons in India.
(c) What is natural vegetation?
(d) Name the different types of vegetation found in India.
(e) What is the difference between evergreen forest and deciduous forest?
(f) Why is tropical rainforest also called evergreen forest?
Answer the following questions.
(i) Which are the two factors on which the growth of vegetation mostly depends?
(ii) Which are the three broad categories of natural vegetation?
(iii) Name the two hardwood trees commonly found in tropical evergreen forest.
(iv) In which part of the world are tropical deciduous forests found?
(v) In which climatic conditions are citrus fruits cultivated?
(vi) Mention the uses of coniferous forest.
(vii) In which part of the world is seasonal grassland found?