Percolation

Q.

Read the following statements concerning the soil.

i) Weathering is a very fast process of soil formation.

ii) Percolation of water is faster in sandy soils.

iii) Loamy soil contains only sand and clay.

iv) Topsoil contains the maximum amount of humus.

Choose the correct statements from the above.

1. (ii) and (iv)

2. (i) and (iii)

3. (ii) and (iii)

4. (i) and (ii)

Q.

What does a high percolation rate really mean?

Q. Which of the following soils has the highest percolation rate of water?

1. Loamy soil
2. Clay soil
3. Humus
4. Sandy soil

Q.

Percolation rate is defined as

1. Rate at which air is absorbed by soil

2. Rate at which water trickles down the soil

3. Rate at which water is absorbed by soil

4. Rate at which air trickles into soil

Q.

Larger soil particles can retain more water.

1. True

2. False

Q. The seeping of water underground through the tiny spaces in between the soil particles is called __________.

1. percolation
2. aeration
3. absorption
4. erosion

Q.

Larger the soil particles, lower is the percolation rate. Say true or false.

1. True

2. False

Q. Which of the following soils has the highest percolation rate of water?

1. Loamy soil
2. Humus
3. Clay soil
4. Sandy soil

Q. What is prolocation rate? In which type of soil it is highest and in which type of soil it is least?

Q. What is prolocation rate? In which type of soil it is highest and in which type of soil it is least?

Q. When a small amount of garden soil is put into a glass jar containing water, stirred and allowed to stand for two hours, the layers from top to bottom would be

1. Humus, water, clay and sand
2. Humus, clay, gravel and sand
3. Debris, water, sand and clay
4. Debris, clay, gravel and sand

Q. What is the percolation of water? How is it different for different types of soil?

Q.

Question 4

Read the following statements with reference to soil.

(i) Weathering is a very fast process of soil formation.
(ii) Percolation of water is faster in sandy soils.
(iii) Loamy soil contains only sand and clay.
(iv) Topsoil contains the maximum amount of humus.

Choose the correct statements from the above
(a) (ii) and (iv)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i) and (ii)

Q.

Pick the correct term for "filtering down through the soil horizons"?

1. Percolation

2. Aeration

3. Irrigation

4. Absorption

Q. The seeping of water underground through the tiny spaces in between the soil particles is called __________.

1. aeration
2. percolation
3. absorption
4. erosion

Q.

Larger the soil particles, lower is the percolation rate. Say true or false.

1. False

2. True

Q.

Which soil among the following would you expect to have the highest percolation rate?

1. Clayey

2. Sandy

3. Loamy

4. Black

Q.

Question 14

Rajasthan is a desert state in India. Once while travelling to Rajasthan by train, Boojho observed several streams and rivulets of rainwater during the journey but to his surprise, he did not see streams of water in the desert region even during rains. Help Boojho to find a suitable explanation for this.