Question

Exogenetic process includes _________.
A. Weathering
B. Erosion
C. Mass wasting
D. All of the above

Answer 1

Hint:
> Exogenic processes operate on or close to the Earth’s surface, and this is a blanket term.
> It involves many processes, but the common factor is that it is all forces working on the surface.
> Some processes work faster in comparison while some work slowly.

Complete answer:
Exogenetic processes originate on the Earth’s surface externally and include the geological phenomena and processes that are related to the environment’s processes within the atmosphere, hydrosphere, and biosphere. The causes for these processes can be both from on the Earth as well as due to the influence of the Moon and Sun. Let us now see if the processes mentioned in the options are included as exogenic processes-

A. Weathering refers to the breaking down or dissolving of rocks on the earth's surface due to various agents or causes. The weathering agents include water, ice, acids, salts, plants, animals, and changes in the temperature. Since all of these processes work on the surface level, this option is correct.

B. Erosion is the process where the particles broken down by the weathering process are transported by different agents. The agents of erosion include wind, water, and glacial action. This process too functions above ground so they are exogenic processes. The option is correct.

C. Mass Wasting is also known as slope or mass movement. It refers to the geomorphic process by which soil, sand, regolith, and rock travel downslope. It is usually as a solid, continuous, or discontinuous mass which moves primarily under the force of gravity. This option too is correct.

D. Since all of the above options are correct, this is the correct answer.

Therefore, the correct answer is A

Note:
> Exogenic processes are responsible for a wide variety of landscape features seen on the earth.
> Exogenic processes are divided into the subtypes of Mechanical, Biological and Chemical.
> The opposite of exogenic forces are endogenic forces.
> In contrast to exogenic forces, endogenic forces cause more violent and drastic landscape changes.