Explain how soil is formed. 15. How is clayey soil useful for crops? 16. How does an elephant in a tropical rainforests adapt itself? explain why
Answers
Answer:
Explanation:
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.
Clayey soil is rich in organic matter. It provides essential compounds and minerals to the crops so that they can grow better. - For growing crops such as wheat, gram, and paddy, the soil that is good at retaining water and rich in organic matter is suitable.
Elephant living in the tropical rainforest are well adapted itself to this region. (i) They have strong sense of smell and uses its trunk for smell and to hold food. (ii) They also use their trunk to hold food. (iii) They have long ears which help them in keeping cool in hot and humid climate.
Answer:
Clayey soil is useful for crops because:
1. Clayey soil is rich in organic matter.
2. It provides essential compounds and minerals to the crops so that they can grow better.
3. Clayey soil is more fertile than sandy soil.
4. Clayey soil has very good water-holding capacity due to its very small and tightly packed particles and contains greater than 50% of clay.
Explanation: