NCERT Solutions for Class 7 Science Chapter 17
Important NCERT Questions
7th Chapter 17 Forests: Our Lifeline
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 3
What are decomposers? Name any two of them. What do they do in the forest?
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The micro-organisms which convert the dead plants and animals to humus are known as decomposers.
Examples: Fungi and Bacteria.
Decomposers recycle and convert the dead matter into humus which mixes with forest soil and provide necessary nutrients to plants. Thus decomposers help in maintaining the necessary nutrient balance in the soil.
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Decomposers are organisms that break down dead plants and animals into simpler substances in forests. Fungi, like mushrooms and molds, and bacteria, such as certain types of cyanobacteria, are examples of decomposers. They play a vital role in recycling nutrients by breaking down organic matter, returning essential elements like carbon and nitrogen to the soil. This enriches the soil, supporting the growth of new plants and maintaining a healthy balance in the forest ecosystem by preventing the accumulation of dead material.