World Geography
The sidereal month may be defined as

the period in which the moon completes an orbit around the earth
the period in which the moon completes an orbit around the Earth and returns to the same position in the sky
the period of rotation of moon
None of these

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World Geography
Which among the following statements is/are correct about Petroleum?Petroleum is an inflammable mixture of oily hydrocarbons.Most of the oil comes from synclines rather than anticlines.Select the correct code from the options given below:

Only 1
Neither 1 & 2
Only 2
Both 1 & 2

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