What is needed for work to be done?
a force must push on an object without moving it.
a force must pull on an object without moving it.
aforce must cause an object to move along the same direction as the force.
aforce must act on an object while an equal force acts oppositely on the object.

Option C

Explanation:

The work done can be defined as a force which can cause the motion of the object in the direction where the force is applied.

The objects moves in the direction where the force is applied. The force can make the object move and it can also make the object stop from the movement if it is in the opposite direction of the motion.

Example: Kicking the football in a forward direction will make the football move in a forward direction.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

bru what tyep of qus is dis