Question

This nutrient is cycled between living things and the soil. Plants absorb this nutrient from the soil and turn it into organic compounds through assimilation. Animals eats the plants and pass the nutrient through the food chain from one organism to another. When the animal dies, it decomposes and returns the nutrient back to the soil. The nutrient can also enter the soil through weathering and erosion.Which cycle is being described?

A. water cycle
B. carbon cycle
C. nitrogen cycle
D. phosphorous cycle

Answer 1

Answer: Phosphorous Cycle

Step-by-step explanation:

The phosphorous cycle can be defined as the cycle which helps in recycling of phosphorous on the earth.

The phosphorous moves through the lithosphere, hydrosphere and biosphere. The wind and rain erodes it from the rock and it flows into the rivers and other water bodies.

The water flows through the lakes and ponds and agricultural lands. The plant absorb the nutrient from the soil and gets assimilated in it.

Animals feed on the plants to get phosphorus and when they die the phosphorus gets mixed in the soil and enters in weathering and erosion.

This cycle is known as phosphorous cycle.

Answer 2

The correct answer will be option-D.

Step-by-step explanation:

The phosphorus cycle is a description of the movement of the phosphorus in a cycle between the rocks to the soil to sediments and the organisms.

The phosphorus is added to the soil in the form of phosphate ions through mechanical and chemical weathering, raining, erosion and leaching. This is then distributed to the soil and water which gets absorbed by the organisms.

The phosphorus acts as a macro-nutrient in the organism as it is the component of the bio-molecules. After the death of the organism, the decomposition process returns this element back to the soil.

Thus, option-D is the correct answer.