Question

Which of the following is an abiotic component of the ecosystem?

• A. bacteria
• B. humus
• C. plants
• D. fungi

Answer 1

The correct option is B

humus

The correct option is B

Explanation for correct answer:

1. Humus is a non-living brown-colored substance formed from the partial decomposition of plant or animal matter and it also forms the organic portion of the soil.
2. Hence, humus is the abiotic component of the ecosystem.

Explanation for incorrect options:

Option A:

1. Bacteria is a living unicellular organism and hence is an abiotic component of the ecosystem.

Option C:

1. Plants are living organisms and hence are abiotic components of the ecosystem.

Option D:

1. Fungi is a connecting link between plants and animals and hence is an abiotic component of the ecosystem.

Final answer: Humus is an abiotic component of the ecosystem.