First human who got married in space is
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Emblica officinalis is the scientific name of
Which of the following causes rainfall during winters in the north-western part of India?
If a healthy freshwater fish is placed in salt water, what will be the expected consequence ?
A level of atmosphere which is composed partly of electrons and positive ions is called
Which of the following planets has the highest revolutionary motion?
The boundary between Earth's crust and mantle is _____.
The outermost layer of the earth's atmosphere is _______.