The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called?
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The association of animals in which both the partners are benefitted is known as
Charcoal can be made at home by burning
Science dealing with study of soil is called
Chernobyl disaster is the result of pollution by_____________
A difference between 2 longitudes at equator is nearby equivalent to _____ km.
___________ is the process of restoring a forest that once existed but was removed at some point of time in the past.
Pollination by wind is called?