Name the hottest planet.
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In 1981, ISRO launched India's first geostationary satellite called -
Many freshwater animals cannot live for long in sea water and vice versa because of the _______ problems, they would face.
Which type of pathogen causes the waterborne disease Cholera?
Which disease is caused due to deficiency of Iodine?
Which of the following three R's are regarded as environment friendly?
Fruits and vegetables are good sources of
In a food chain, what is the difference between primary consumers and secondary consumers?