Non-judicious use of forest resources has a very little effect on biodiversity.

It is important to make small check dams across the flooded gullies because they
$(i)$ hold water for irrigation
$(ii)$ hold water and prevent soil erosion
$(iii)$ recharge groundwater
$(iv)$ hold water permanently

Given below are a few statements related to biodiversity. Pick those that correctly describe the concept of biodiversity.
$(i)$ Biodiversity refers to the different species of flora and fauna present in an area.
$(ii)$ Biodiversity refers to only the flora of a given area.
$(iii)$ Biodiversity is greater in a forest.
$(iv)$ Biodiversity refers to the total number of individuals of a particular species living in an area.

What are the various factors which are damaging our forests?

Which of the following is not a natural resource?

What is the forest area in Gujarat in square kilometers $(km^2)$?