Answer in brief.

(a) Why should we conserve biodiversity?
(b) Protected forests are also not completely safe for wild animals. Why?
(c) Some tribals depend on the jungle. How?
(d) What are the causes and consequences of deforestation?
(e) What is Red Data Book?
(f) What do you understand by the term migration?

(a) Biodiversity is the variety of all life forms on Earth and it includes  different plants, animals and micro-organisms and the ecosystems of which they are a part. We should conserve the biodiversity because it is very important for all living organisms and also for environment. We should conserve it from being extinct.
(b) Protected forests are not completely safe for animals as poachers have the access in these areas who kills animals. There is a need to make strict rules against poaching and trespassing.
(c) Some tribals are still depends on jungle for their food, fuel, wood, shelter etc. They live in forests. Forests are the source of livelihood for them.
(d) The main cause of deforestation is urbanization and industrialization. The consequences will results in soil erosion, global warming and depletion of ground water which cause ultimate danger to human being.
(e) Red book data is the source book which keeps a record of all endangered species.
(f) Migration is movement of species from their own habitat to other habitats for a particular time period for a specific purpose like breeding.