World Geography
The sidereal month may be defined as

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

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World Geography
Which among the following pairs of volcanoes is/are correctly matched?Mount St. Helens – United StatesMount Vesuvius – ItalyMount Krakatoa – IndonesiaSelect the correct code from the options given below:

Only 2
Only 2 & 3
1, 2 & 3
Only 1 & 3

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