Front

Soil erosion means

Back

The removal of the top soil cover by water, wind and human activities

Front

What leads to Sheet erosion on hilly slopes?

Back

Deforestation

Front

How are Gullies formed?

Back

Absence of vegetation leads to formation of rills and then during heavy rains Gullies are formed.

Front

Removal of vegetation for land use like railways, roads, buildings and agriculture has caused: Rill erosion, Sheet erosion, Gully erosion, All of the above

Back

All of the above

Front

Wind moves soil particles that are: 0.1-0.6mm, 0.1-0.5mm, 0.1-0.7mm

Back

0.1-0.5mm

Front

saltation means

Back

0.1-0.5mm– size soil particles bouncing or hopping fashion due to wind

Front

Soil creep is

Back

greater than 0.5mm– size soil particles moving in rolling fashion due to wind

Front

Wind erosion occurs in areas that have sandy or coarse bare soils (without any vegetation).

Back

True

Front

Occurs on gentle slopes, and is slow removal of thin layer of Soil.

Back

Sheet erosion

Front

Continuation of sheet erosion for long finger shaped rills or grooves are formed is called

Back

Rill erosion