Study of classification of organisms is known as _____.
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The girth of the stem or root in plants increases due to :
The ozone layer is mainly found in the lower portion of the _______.
The least preferred technique in the disposal of Municipal Solid Waste is
Evidence suggests that life on Earth has existed for about_________________.
What is the accepted average Calorie requirement for rural area in India?
Which disease is caused by Nickel?
The Tropic of ____________ passes almost halfway through India.