SOIL EROSION

What factor of soil erosion is responsible for the transfer of sand from one

place to another?

• wind

• water

• animals

• humans

Which of the following shows that animals cause soil erosion?

• Construction workers are building a housing project.
  

• A hen is digging the soil
  

• The root of plants is growing.
  

• Sandstorm
  

________ is also coupled with weathering and deposition. Tiny particles of rocks or the sediments formed from the process of weathering are carried away from one place to another by agents of erosion such as wind and water. As the wind blows and water flows anywhere on land, they break down rocks and carry these sediments to other places and deposit them elsewhere.

All of these are causes of soil erosion except one.

• water
  

• humans
  

• sun
  

• wind
  

What human activity contributes to soil erosion that involves removing

minerals and metals from soil and rocks?

• mining
  

• quarrying
  
  

• deforestation
  
  

• kaingin
  
  

What do you call the process of cutting down trees and burning them to

clear land for cultivation, exposing the land to air and water, and making the soil prone to erosion?

• deforestation
  

• gardening
  

• kaingin
  

• bad farming
  

How can trees prevent soil erosion?

• The roots hold the soil firmly together
  

• The trees block the way of running water.
  

• The roots absorb the water at once.
  

• The roots secrete acid, attacking the rocks.
  

________is a farming technique where the soil is plowed following the contour or shape of the land.