Long Answer Type Questions
What is meant by soil profile ? Draw a sketch of the soil profile and label the various layers. Name any
two situations in which we can see the soil profile at a place.
. What is meant by sandy soil clavey soil and loamy soul? Give any two properties each of sandy soil
.
clavey soil and loamy soul.
What is soil ? How is soil formed ? Describe an activity to show that soil contains water,
What is meant by soil erosion ? State the cause of soil erosion. What are the effects of soil erosion ?
What is meant by soil pollution ? Name any four things which can cause soil pollution. How can soil
pollution be prevented ?
Choice Questions (MCO)
Answers
Explanation:
HOPE THIS HELPS YOU
PLEASE MARK AS BRAINLIEST AND FOLLOW ME
Answer:
A soil profile is a vertical section of soil like the diagram above. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons. The main soil horizons are A, B, C and D.
- at the time of digging well.
- at the time of foundation of a building.
a sandy soil has the highest proportion of sand particles and the lowest proportions of silt and clay (within the fine earth fraction), a clayey soil has the highest proportion of clay particles, and the loam soil has the most even distribution of sand, silt, and clay particles.
Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt and clay-rich soils, and are easier to till than clay soils.
Clay soils feel very sticky and rolls like plasticine when wet. They can hold more total water than most other soil types and, although only about half of this is available to plants, crops seldom suffer from drought.
