Why are 'haloes' (rings) observed sometimes round the sun or moon?

Find the component Statements of the following and check whether they are true or not : The earth revolves around the sun or the moon.

Both earth andmoon are subject to the gravittional force of the sun. As observed from the sun, the orbit of the moon

State the reason for the following observations recorded from the surface of moon.sky appears dark

State the reason for the following observations recorded from the surface of moon rainbow is never formed.

Explain with reason, why sun is observed earlier to actual sun rise and after sun set.

Why does the body of a bus begins to rattle sometimes when the bus picks up the speed?

Find out which of the following sentences are statements and which are not, justify your answer The moon revolves round the sun.

During a total solar eclips the moon almost entirely covers the sphere of the sun. Write the relation between the distances and sizes of the sun and moon.