State three objectives of agro-forestry.

Give a geographical reason for each of the following:

(i) Nilgiri region has variety of vegetation type.

(ii) Sundari trees are used for boat making and construction purposes.

(iii) Littoral forest is also called tidal forest.

Why does the vegetation in the Himalayas vary with altitude?

Explain how is man responsible for the reduction of forest cover in India.