Related Questions

Consider the following types of erosion
1. Gully erosion
2. Splash erosion
3. Normal erosion
4. Rill erosion
5. Sheet erosion
The correct sequence in terms of the increasing order of soil loss from the field due to these types of erosion is
Consider the following statements and choose the correct answer:
1. Roots of grasses are an excellent binding material and keep the soil intact
2. Disruption of the grass cover by the plough loosens the soil and makes it vulnerable to removal by the force of rain or strong winds
3. Tilling or grazing on slopes or semi-arid soils decreases the rate of soil erosion
4. Soil erosion is especially high in Nepal, India, China, Australia, Spain, USSR, USA and Central Africa
Consider the following statements and find the correct one.
1. Prolonged wet and dry spells causes soil erosion in Central Bengal.
2. Spring season in Bengal experiences no rainfall and pleasant weather conditions.
3. Silviculture is a preventive measure of soil erosion in some districts of West Bengal.
Consider the following statements and choose the correct answer:
1. Control of land loss can be attempted through restoring forest and grass cover to check erosion and floods
2. Shifting cultivation can be replaced by crop rotation, mixed cropping or developing piantation crops which would improve fertility and support a large population
3. Salinity can be prevented by covering the area with appropriate plant species and by raising trees as wind breaks
4. Shifting sand can be controlled by mulching
Consider the following statements and choose the correct answer:
1. Average density of soil is 2.65 gms. per ml.
2. The spaces present between soil particles in a given volume of soil are called pore spaces
3. Porosity of the soil decreases with the increase in the percentage of organic matter in the soil
4. Macro-pore spaces have little water holding capacity and allow free movement of moisture and air in the soil under normal condition
Soil erosion can be prevented by
Soil erosion can be prevented by ________
S1: Egypt is located in north-east of Africa.
P: The land should be productive.
Q: It is on the coast of Mediterranean Sea.
R: The important thing is not just the area.
S: Its area is almost four times that of England.
S6: Egypt is mostly desert or semi-desert.

The Proper sequence should be:
Which of the following are the components of loamy soils?
I. Red soil
II. Clay soil
III. Alluvial soil
IV. Silt soil
V. Sandy soil
Soll erosion can be prevented by-