Question

In addition to the rock particles, the soil contains

• A. Air and water
• B. Water and plants
• C. Minerals, organic matter, air, and water
• D. Water, air and plants

Answer 1

The correct option is C

Minerals, organic matter, air, and water

The correct option is C.

Explanation for the correct option:

Option C:

1. The term "soil composition" describes the minerals and other elements present in the soil.
2. Plants can get a lot of the nutrients they require for growth from the soil.
3. The main nutrients are nitrogen (N), phosphorus (P), and potassium (K).
4. They make up the NPK trio collectively.
5. The fundamental components of soil include minerals, organic matter, water, and air.
6. Approximately 45% of soil is made up of minerals, 5% of soil is organic, 20–30% of soil is water, and 20–30% of soil is air.
7. Minerals like iron and aluminum are present in the combined state.
8. The organic stuff is present, just like bacteria and plants.
9. There may or may not be air in the inter-soil region.
10. The soil would undoubtedly be present in the soil depending on its capacity to retain water.

Explanations for the incorrect options:

Option A:

1. Due to possible isolated air pockets, the soil atmosphere is not constant across the soil.
2. Unlike most atmospheric humidity, soil air has a relative humidity that is almost 100%.
3. In a natural setting, the air is the third crucial resource for people, animals, plants, and all other living things.

Option B:

1. Both biotic—living or once-living organisms, such as plants and insects—and abiotic—nonliving elements, such as minerals, water, and air—make up soil.
2. In addition to living and dead plants and animals, soil also contains air, water, and minerals.
3. Unlike most atmospheric humidity, soil air has a relative humidity that is almost 100%.

Option D:

1. Both biotic—living or once-living organisms, such as plants and insects—and abiotic—nonliving elements, such as minerals, water, and air—make up soil.
2. In addition to living and dead plants and animals, soil also contains air, water, and minerals.
3. Unlike most atmospheric humidity, soil air has a relative humidity that is almost 100%.
4. In a natural setting, the air is the third crucial resource for people, animals, plants, and all other living things.
5. The correct option is C, as it contains minerals, organic matter, air, and water.

Final answer: In addition to the rock particles, the soil also contains minerals, organic matter, air, and water.