_________ influences the rate of weathering and humus in soil formation.
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The largest dolphin species is the orca, also called as ________.
First man to go into space was
Marble comes under which category of rocks?
Which of the following fuels causes minimum environmental pollution?
UV rays coming from Sun, majorly causes which cancer?
Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
The place on the earth's surface above the focus is called the __________.