Water in freezing form may break the rocks in to pieces by force of

Rocks are made up of

A. soil

B. core

C. mantle

D. crust

With the passage of time the transported sediments become

A. smoother

B. smaller

C. rounder

D. all of them

The dead remains of animals and plants also accumulate to form

A. coal

B. natural oil

C. diamond

D. sedimentary layer

Weathering of rocks is affected by

A. rain

B. temperature

C. both a and b

D. erosion

Sedimentary layers over a period of time are compacted and cemented to form

A. sedimentary rocks

B. mountains

C. deserts

D. hills