Assertion: Life appeared 500 million years after the formation of earth.
Reason : There was no atmpshere on early earth.

It took millions of years for the formation of ………..... fuels.

It took millions of years for the formation of ________ fuels.

In early earth oxygen

In early earth oxygen

Time gap in between formation of earth & origin of life :

Time gap in between formation of earth & origin of life :

Assertion : Geostationary satellites appear fixed from any point on earth. Reason : The time period of geostationary satellite is 24 hours.