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1681.

The intensity of wind erosion is affected by:

A.	Wind speed	B.	Soil particle size
C.	Soil structure	D.	All are correct

1682.

Wind erosion is influenced by:

A.	Clod size	B.	Wind velocity
C.	Soil moisture	D.	All are correct

1683.

Wind velocity varies with:

A.	Temperature	B.	Density of air
C.	Viscosity of air	D.	All are correct

1684.

In wind erosion movement of particle is carried out by:

A.	Saltation and surface creep	B.	Suspension
C.	Saltation, suspension and surface creep	D.	None of these

1685.

Surface creep is carried out by the action of:

A.	Rolling and jumping	B.	Rolling or sliding
C.	Both (a) and (b)	D.	None of these

1686.

Particles less than 0.1 mm diameter is moved by the action of:

A.	Suspension	B.	Saltation
C.	Surface creep	D.	None of these

1687.

A 0.2 mm diameter particles are counted as:

A.	Saltation particles	B.	Particles of surface creep
C.	Suspension particles	D.	None of these

1688.

Particles size for saltation process ranges from:

A.	0.1 to 0.5 mm diameter	B.	0.5 to 1.0 mm diameter
C.	0.1 to 0.01 mm diameter	D.	None of these

1689.

Wind erosion is more in:

A.	Cohesive soils	B.	Non-cohesive soils
C.	Rocky soils	D.	None of these

1690.

Wind erosion is influenced by:

A.	Clod size, surface roughness and soil moisture	B.	Wind velocity, clod size, and surface roughness and soil moisture
C.	Wind velocity only	D.	None of these