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Subject :NSO    Class : Class 8

The given figure shows the petroleum deposit inside the earth’s crust.

Which of the following is correct with respect to substance X?
I. X is chiefly made up of methane.
II. X is stored under low pressure.
III. X is a clean, non-polluting fuel.

A I and III
B II and III
C I and II
D None of these

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
what is x

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