Soil Formation

Q. Which of the following inorganic matter is present in the soil ?

1. Rocks
2. Minerals
3. Water
4. Manure

Q. Soil formation is a rapid process.

1. True
2. False

Q. Which type of soil is suitable for growing cotton?

Q. The factors like water, wind and living organisms influence soil formation.

1. False
2. True

Q. Soil formation is a rapid process.

1. False
2. True

Q. Which of the following statements are true regarding soil formation?

1. Strong water flow causes wearing of rocks which leads to soil formation.
2. Outermost layer of Earth contains variety of nutrients.
3. Humus reduces the fertility of the soil.
4. Sun and water are two factors that helps in soil formation.

Q. The removal of the topmost fertile layer of soil is called soil _______.

1. erosion
2. formation
3. disintegration
4. culture

Q. Both biotic and abiotic factors are responsible for soil formation.

1. True
2. False

Q. Which of the following factors is not responsible for soil formation ?

1. Wind
2. Water
3. Climate
4. Colour of the rocks

Q. What is the process of wearing off of the banks of stream or river called?

1. Erosion
2. Irrigation
3. Percolation
4. Aeration