soil erosion and conservation

Which river in China is also known as SORROW OF CHINA? 

• Hwang Ho, China

• Amazon, South America

• Nile, Egypt

• Kosi, Bihar

Which valley of Madhya Pradesh has been left unfit for cultivation by flooded rivers? 

• Araku valley

• Chenab valley

• Doon valley

• Chambal valley

Growing trees on a large scale is called______.

• Flood

• Afforestation

• Deforestation

• Overgrazing

When do we celebrate Earth Day every year? 

• 22 May

• 22 June

• 22 April

• 22 July

What do the three R’s stand for? 

• Recollect redistribute reuse

• Recollect reuse recycle

• Reduce reuse recycle

• Recollect redistribute reuse

Cutting slopes into steps can reduce soil erosion by slowing down the flow of  

• Wind

• Heat

• Water

• None of these

How long did it take for soil formation.

• Hundreds of years

• Millions of years

• Thousands of years

• Soil was already present

In which region strong winds blow a lot of top soil? 

• Near the river

• Desert and semi desert region

• Rainforest

• Hill station

Plants and trees hold the soil together by their 

• Stems

• Branches

• Tendrils

• Roots

The wearing off and carrying away of soil by the action of wind or water is called: 

• Storm

• Weathering

• Soil erosion

• Ploughing