Question

work done by a force depends upon the force applied and dash produced in the body​

Answer 1

Answer:

Displacement of the body: work done by a force on a body is directly proportional to the displacement the body in the direction of force applied.

Answer 2

Answer:

(i) Environmental aspects must be carefully looked into before building

huge dams.

(11) Most industries are concentrated around coal mines.

(1) Petroleum is referred to as “black gold”.

(iv) Quarrying can become a major environmental concern.

Distinguish between the followings.

(i) Conventional and non conventional sources of energy

(ii) Biogas and natural gas

(iii) Ferrous and nonferrous minerals

(iv) Metallic and nonmetallic minerals