Question

Which of the following rocks is used for the construction of roads ?

A. Marble

B. Granite

C. Limestone

D. Gabbro

7. The pencil that we write with is called a ‘lead’ pencil. What does it contain ?

A. Coal

B. Graphite

C. Wood

D. Lead

8. Study the given relationship.


Conglomerate : Quartzite : Obsidian

Select the option which correctly satisfies the same correlation.

A. Basalt : Gneiss : Pumice C. Shale : Basalt : Pumice

B. Marble : Shale : Granite

C. Shale : Basalt : Pumice

D. Limestone : Gneiss : Pumice

Answer 1

limestone is used for construction of roads.lead pencil contain graphite

Answer 2

Answer:

Basalt stone, which is also known as traps, is commonly used in road construction, as aggregate in concrete production, rubble masonry works for bridge piers, river walls, and dams.