Which among the following is not an inner planet?
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The arrangement of leaves on an axis or stem is called
The large collection of stars, dust and gas held together by gravitational attraction between components is known as
The maintenance functions of living organisms are performed by the _____.
Helium is added to the oxygen supply of deep sea divers because it is _________
Equal day/night in both hemispheres is on ________.
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?
Mars is the _______ planet from the Sun.