Question

Which type of rocks provides sand and gravel for construction purposes?

Options

• Igneous

• Sedimentary

• Metamorphic

• All of these

Answer 1

Sedimentary

Explanation:

Sedimentary rocks have a stratified structure and are often soft and porous. Sand and gravel used in construction primarily come from these sedimentary rocks as they are formed from accumulated sediments. Examples include sandstone and conglomerate which are commonly used for construction material.