Construction Materials

1) identify the process responsible for the formation of igneous rocks.

Discuss in Comment

solidification of molten mass of silicates below or at the surface of earth

2) Identify the process responsible for the formation of sedimentary rocks

Discuss in Comment

deposited layers of sand and silt subjected to enormous overburden pressures over geological times

3) identify the process responsible for the formation of metamorphic rocks.

Discuss in Comment

changes in texture or mineral composition or both of igneous and sedimentary rocks due to high temperature and heavy pressures

4) The process of taking out stones of various sizes from natural rocks is known as

Discuss in Comment

quarrying

5) The process of giving definite and regular shape to stones with smooth faces is known as

Discuss in Comment

dressing

6) If the molten magma forces itself into an already existing rock in the earth’s crust and solidifies there, such a rock is known as

Discuss in Comment

intrusive rock

7) The physical classification divides the rocks into

Discuss in Comment

stratified, unstratified and foliated

8) identify the geological classification of rocks.

Discuss in Comment

igneous, sedimentary and metamorphic

9) identify the chemical classification of rocks.

Discuss in Comment

calcareous, agrillaceous and Silicious

10) Gypsum is a

Discuss in Comment

chemically precipitated rock

Subject Notes

Objective Box

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