Contour farming is usually employed in
Hilly areas
Sandy areas
Sea beaches
All of these
Wild populations of plants and animals and traditional life styles of tribals are protected in
Biosphere reserves differ from National parks and Wildlife sanctuaries because in the former
Which is not true regarding genetic diversity?
Assertion : Tropical rain forests are disappearing fast from developing countries such as India.
Reason : No value is attached to these forests because these are poor in biodiversity
Large woody vines more commonly found in