Soil fertility is reduced by :
Crop rotation.
Nitrogen fixing bacteria.
Decaying organic matter.
Intensive agriculture.
Convention of biodiversity came into force on :
29 Dec.1993
6 June. 1992
3 Oct. 1994
4 Oct. 1993
The institution, where valuable plant material-likely to become irretrievably lost in the wild or in cultivation is preserved in a viable condition is known as :
Genome.
Gene library.
Gene bank.
Herbarium.
Dudhwa National Park :
Uttar Pradesh.
Rajasthan.
Gujarat.
Madhya Pradesh.
Which animal is the symbol of the worldlife fund?
Tiger.
Hornbill.
Giant panda.
White bear.
Which is the first National Park of India ?
Kanha National Park.
Periyar National Park.
Corbett National Park.
Bandipur National Park.
Which of the following is the most important natural resource of energy ?
Electricity.
Biogas.
Fossil fuel.
Atomic fission.
Range land refers to :
Wetland.
Grass land.
Desert.
Dry land.
