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: 5
Explain why there is no waste in a forest.
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Forests are excellent, perfect and natural recycling factories. All animals, whether herbivores or carnivores, depend ultimately on plants for food. Herbivores eat plants and their products. Carnivores eat herbivores. Dead remains of animals and plants are decomposed by micro-organisms into humus. Whatever is produced in the forest is ultimately utilized by different components of the forest. Forests maintain a network of food chains called food web and hence nothing goes waste in a forest.
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Forests operate in a cycle where waste is turned into valuable resources. Fallen leaves, dead plants, and animals in forests decompose through tiny organisms, providing nutrients to the soil. This process supports new plant growth, preventing waste accumulation. Nutrients are continuously recycled, ensuring a constant supply for plants. Symbiotic relationships among various organisms further optimize resource use. In this balanced system, what might seem like waste becomes a vital component, contributing to the forest’s health and sustainability without creating waste accumulation.