In a food chain, what is the difference between primary consumers and secondary consumers?
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Using which of the following processes can one separate a solute from its solution?
Green House Effect' means
What is the name of the balloon – borne instrument set to be launch by NASA to study heavy cosmic particles?
Which of the following is a tsunami warning sign?
The energy which we get from food is measured in
__________ acts as a shield absorbing ultraviolet radiation from the sun.
Gustation refers to the sense of which of the following ?