The ozone layer protects us from harmful _______________ rays of the sun.
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Raymond Samuel Tomilson is famous for developing which of the following?
Bill Gates co-founded 'Microsoft Corporation' in 1975 with?
One step in the production of hydroelectric power involves _____.
In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145
Which of the following was invented by Sir Humphry Davy?
Who was the first to score a perfect 10 in Olympics in gymnastics?
Chhatrapati Shivaji Terminus station was designed by