SOIL EROSION

WHAT IS SOIL EROSION ??

• THE REMOVAL OF GRASS IS CALLED SOILEROSION

• ^{THE REMOVAL OF WATER FROM THE SOIL EROSION}

• Soil erosion is the washing or blowing away of the soil {by wind or water} of the top layer of the soil.

• THE REMOVAL OF SOIL BY ONLY WATER

SOIL IS ERODED BECAUSE OF ------------------ { 2 options}

• ONLY WIND

• OVER GRAZING OF CATTLE

• ONLY WATER

• WIND WATER

• HUMANS

WHICH STATEMENT IS FALSE AMONG THESE ?

• SOIL EROSION IS CAUSED BY WATER WIND AND ANIMALS..

• WE CAN PREVENT SOIL EROSION BY DEFORESTATION

• SOIL EROSION IS THE DISPLACEMENT OF THE UPPER LAYER OF THE SOIL!!

NAME THE ABOVE SITUATION DUE TO SOIL EROSION

• AGRICULTURAL LOSS

• DEFORESTATION

• FLOOD

• DESERTIFICATION

WHAT IS THE METHOD USED IN THE ABOVE PIC ? WHERE IT IS USED ?

• THE ABOVE METHOD IS TERRACE FARMING AND USED IN HILLY AREAS

• THE ABOVE METHOD IS FARMING AND USED IN PLAINS

• THE ABOVE METHOD IS GARDENING AND USED IN PLATEAUS

What is the above method called ?

• Crop rotation

• Terrace farming

• Contour farming

• Strip farming

Soil erosion is fastest in ----------climates

• HOT AND MOIST

• COLD AND DRY

• COLD

Why is soil erosion is happening while overgrazing of cattle

• while grazing cattle leave more water

• plants hold the soil firm if cattle eat it soil will become loose and its eroded

• while grazing the cattles unknowingly loses the soil with legs

The removal of trees in a large scale is called -----------

• OVERGRAZING

• IMPROPER FARMING

• HEAVY RAINFALL AND FLOODS

• DEFORESTATION

Name positive effects of soil erosion among these..{ 2 options}

• when soil is eroded we can easily big mines and precious metals from there

• Helps in agricultural development

• Maintain or increase productivity by keeping soil in place.

• Desertification