In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.
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In December 2015, NASA's Curiosity Mars rover found the presence of ____, which will help scientists learn about the ancient wet environment.
Ultraviolet radiation in the stratosphere is absorbed by
Azolla increases soil fertility for ....
Black revolution relates to which of the following?
Black revolution relates to petroleum production.
What is used to prevent freezing of fuel in space crafts?
Which sanctuary in India is famous for Rhinoceros and in which state is it located?
Ajanta Caves is in ______.