Question

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.

• A. (ii) and (iv)
• B. (i) and (iii)
• C. (ii) and (iii)
• D. (i) and (ii)

Answer 1

The correct option is A

(ii) and (iv)

The correct option is A

The explanation for the correct option:

1. Percolation is the technique of screening liquid while upholding through a filter.
2. Water travels downwards through the tiny spaces between particles in sandy soil.
3. Topsoil is a very fertile layer of soil.
4. It contains nutrients and organic matter.
5. It also contains lots of humus which increases the fertility of the soil.

The explanation for the incorrect option:

Option A:

1. Weathering is a very slow process
2. Loamy soil consists of sand, clay, silt, and humus.

Option B:

1. Loamy soil is a mixture of clay, sand, and silt, including additional organic matter. and very fertile compared to other soils.
2. It is very suitable for cultivation because the roots receive enough water and nutrients to grow and develop.

Option D:

1. The slow action of climate and weather elements, animals, and plants on the and to smash them down biologically, chemically, and physically is called weathering.

Final Answer:

Topsoil contains humus, and percolation takes place faster in sandy soil.