______________ keeps the earth's surface warm at night.

______________ rocks is formed from sediments deposited on the sea bed,river bed,floors of lakes,on beaches,on land,glacial moraines etc.

_________ is calmer than the troposphere and has little water vapour.

The landmasses,which provide a home for humans,animals and plants represent the solid realm of the Earth is called ___________.

The narrow zone of contact between the land,water and air,where all the forms of life exist is called the _________.

Igneous rocks are of __________ types.

___________ takes more than a thousand years to produce a few centimetres of soil.

Hot rocks form magma in ___________ layer.

__________ provides organic as well as mineral matter for the growth of plants.

___________ layer is warm near the surface of Earth.