Which of Newton's laws explain why a balloon rocket takes off?

Newton's Third Law of Motion,

Explanation:

Every action has an equal and opposite reaction. So, as the gas is released from the balloon, it pushes against the outside air, and the outside air pushes back, and as a result, the rocket is propelled forward by the opposing force. This opposing force is thrust.

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