Who is the current director of Research and Analysis Wing (RAW), India's foreign intelligence service?
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The boundary between Earth's crust and mantle is _____.
The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?
A volcano that is not expected to erupt again is called
During the past century, the temperature of Earth has increased by ________.
Mars is the _______ planet from the Sun.
Science dealing with study of soil is called
_______ fiber is used in making bulletproof vests.