Q1. Explain how soil is formed.
Q2. How is clayey soil useful for crops?
Q3. List the differences between clayey soil and sandy soil.
Answers
Answer:
ans 1 Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.
ans 2. For growing crops such as wheat, gram, and paddy, the soil should be good at retaining water and rich in organic matter is suitable. Therefore, clayey soils having these characteristics are useful for such kind of crops. Because it is good in absorbing and holding water for plants.
ans 3 Clayey Soil Sandy soil
2 Particles are packed tightly. Particles are loosely packed.
3 It can hold a good amount of water. Its ability to retain water is low.
4 Water can not drain quickly. Water can drain quickly.
5 It is heavy in weight. It is light
Answer:
This is answer of Q1.
Soil is the thin layer of material covering the earth’s surface and is formed from the weathering of rocks. It is made up mainly of mineral particles, organic materials, air, water and living organisms—all of which interact slowly yet constantly.
Q2. answer
Answers
AnswersClayey soil has very small sized particles. These particles are packed tightly and therefore can retain water. Clayey soil is also rich in organic matter. For growing crops such as wheat, gram, and paddy, the soil should be good at retaining water and rich in organic matter is suitable. This is how clayey soil is useful for crops
Q3. answer
S.no
S.no Clayey Soil
S.no Clayey Soil Sandy soil
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed. 3 It can hold a good amount of water. Its ability to retain water is low.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed. 3 It can hold a good amount of water. Its ability to retain water is low. 4 Water can not drain quickly. Water can drain quickly.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed. 3 It can hold a good amount of water. Its ability to retain water is low. 4 Water can not drain quickly. Water can drain quickly. 5 It is heavy in weight. It is light in weight.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed. 3 It can hold a good amount of water. Its ability to retain water is low. 4 Water can not drain quickly. Water can drain quickly. 5 It is heavy in weight. It is light in weight. 6 Less air is trapped between the particles. More air is trapped between the particles.
S.no Clayey Soil Sandy soil 1 The proportion of fine(small) particle is higher. The proportion of large particles is higher. 2 Particles are packed tightly. Particles are loosely packed. 3 It can hold a good amount of water. Its ability to retain water is low. 4 Water can not drain quickly. Water can drain quickly. 5 It is heavy in weight. It is light in weight. 6 Less air is trapped between the particles. More air is trapped between the particles. 7 Good for growing various crops Not suitable for growing crops.