Soil Erosion and Conservation(Bl 18 Ln 4)

Deforestation leads to ________________.

• soil erosion

• increase in rainfall

• growth of forests

• reduction in pollution

Animals may cause soil erosion by ________________.

• overgrazing

• building nests

• pollinating flowers

• digging tunnels

These actions help to reduce soil erosion by:

• preventing the removal of topsoil by wind and water

• increasing the rate of soil erosion

• removing vegetation cover

• loosening the soil structure

Which of the following is an effective way to educate people about soil conservation?

• Organizing awareness campaigns

• Ignoring the issue

• Discouraging discussions

• Promoting soil erosion

________________ prevent soil erosion.

• Afforestation

• Deforestation

• Both

____________ farming reduces the speed of flowing water on hills.

• step

• rain

• Hydroponics
• Monoculture

Heavy rains, strong winds, and dust storms are natural causes of soil erosion.

• True

• False