World Geography
What are secondary mineral deposits formed in caves called?

Ejecta Blanket
Speleothems
Pyroclastic debris
Speleogenesis

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World Geography
The sidereal month may be defined as

None of these
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

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