Ozone hole is caused by chemicals like _____.
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ABM stands for ______.
Earth revolves around Sun. Who was the 1st one to present this theory?
What is the name of first solar mission of Indian Space Research Organisation set to be launch in 2019?
Plants get their energy to produce food from which of the following?
On which date is India likely to experience the shortest day?
Brain fever is a disease spread through which of the following?
Bridgmanite is