EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is erosion?
A
a force that pulls all objects
B
a solid found in nature
C
humus
D
the carrying of weathered rock and soil from place to place
Explanation: 

Detailed explanation-1: -Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering, breaks down or dissolves rock, but does not involve movement.

Detailed explanation-2: -Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.

Detailed explanation-3: -Wind, water, ice and human activities are some of the causes of erosion. Weathering is caused due to atmospheric factors like air pressure. Erosion and weathering together degrade soil and wear away shorelines and cliffs.

Detailed explanation-4: -Erosion is the process by which natural forces move weathered rock and soil from one place to another. Gravity, running water, glaciers, waves, and wind all cause erosion. The material moved by erosion is sediment.

Detailed explanation-5: -Erosion relies on transporting agents such as wind, rivers, ice, snow and downward movement of materials to carry weathered products away from the source area. As weathered products are carried away, fresh rocks are exposed to further weathering. Over time, that mountain or hill is gradually worn down.

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