What is the average residence time of water in the air ?
12 Days.
5 Days.
10 Days.
15 Days.
Which is the first National Park of India ?
Kanha National Park.
Periyar National Park.
Corbett National Park.
Bandipur National Park.
How does the organic matter increases in the soil ?
Contour ploughing.
Crop relation.
Strip cropping terraces.
Conservation tillage.
Number of ecological hotspots in the world is :
14
16
20
25
Eco friendly method is :
Plantation of C3 plants.
Plantation of sugar cane.
Energy plantation.
None of the these.
Which of the following pairs of an animal and a plant represent endangered organisms in India?
Bentinckia nicobarica and red panda
Tamarind and rhesus monkey
Banyan and black buck
Resource available in unlimited quantity on earth.
Exhaustible resources
Natural resource
inexhaustible resources
None of these
Eroded soils are :
Devoid of plant nutrients.
Richer in plant nutrients.
Unaltered in plant nutrients.
Fit for agriculture.
The resource that are not regained after utilization :
Non renewable resource.
Renewable resource.
In exhaustible resources.
Artificial resources.
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.
