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The deepest surface depression on the earth is:
The darkest portion of the shadow cast during an eclipse is:
The soil water which is of the greatest importance to the plant life is:
The main cause of recurring flood is:
Grassland ecosystem has which type of biomass pyramid?
The narrow stretch of water connecting two Seas is called:
Which of the following metals contribute to bio magnification problem in the ecosystem?
Maps on large scale, representing both natural and man-made features are called:
Consider the following geological phenomena:
I. Development of a fault
II. Movement along a fault
III. Impact produced by a volcanic eruption
IV. Folding of rocks
Which of the above causes earth-quakes?
The disconnected lines drawn on a map for showing slope: