The maintenance functions of living organisms are performed by the _____.
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A volcano that is not expected to erupt again is called
____ lake is suspected to have developed due to ipact of a large meteorite on Deccan Basaltic rocks of Cretaceous age.
Equinox means the date when ___________.
The _________ keeps the average temperature of the Earth fairly steady.
What are Equinox days?
Marble comes under which category of rocks?
Intensive cultivation refers to