What is the average speed of the revolution of the Moon around Earth?

Which layer present in the atmosphere absorbs harmful ultra violet radiations?

What is the measure of the earth’s diameter at the equator?

From the following which indicates the percentage of water present on earth surface?

The presence of which factor made life possible on earth?

The layer of rocks which forms the surface of earth is called -----------

Polestar appears vertically overhead at the ----------- .

The diameter of the moon is ______ km.

Which is the only natural satellite of earth?

When lunar eclipse occurs the shadow of earth falls on -----------