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DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 Mushrooms and other micro-organisms that live in the soil feed upon dead plant and animal tissues and are known as decomposers. These micro-organisms play an important role in forests. The humus, a dark coloured substance, is produced by decomposers. A layer of humus is found if we remove some dead leaves from the soil in forests. The presence of humus ensures that nutrients from dead plants and animals are released into the soil. Humus

A) is a dark coloured substance.

B) is produced by micro-organisms.

C) is produced by decomposers.

D) all the above are correct.