Extra Questions for Chapter 4 Class 8 Science

1. What is an ecosystem?
An ecosystem is a community of living and non-living things that interact with each other in a specific environment. It includes the physical environment such as air, water, soil, and sunlight, as well as the living organisms such as plants, animals, and microorganisms.

2. What are the components of an ecosystem?
An ecosystem consists of two main components - biotic and abiotic. The biotic component includes all the living organisms such as plants, animals, and microorganisms, while the abiotic component includes the non-living things such as air, water, soil, and sunlight.

3. What is a food chain?
A food chain is a linear sequence of living organisms where one organism eats another organism to obtain energy. It starts with a producer, usually a plant, which is eaten by a primary consumer, which is then eaten by a secondary consumer, and so on.

4. What is a food web?
A food web is a complex network of interconnected food chains in an ecosystem. It shows the flow of energy from one organism to another and how different organisms are interconnected in an ecosystem.

5. What is a decomposer?
A decomposer is an organism that breaks down dead organic matter into simpler substances. Examples of decomposers include bacteria and fungi. They play an important role in maintaining the balance of nutrients in an ecosystem.

6. What are the different types of ecosystems?
There are various types of ecosystems such as forests, grasslands, deserts, freshwater ecosystems, marine ecosystems, and many more. Each ecosystem has its unique set of biotic and abiotic components and supports a specific set of living organisms.

7. Why is it important to conserve ecosystems?
Ecosystems provide various benefits to humans such as clean air, water, and food. They also regulate the climate, provide habitat for wildlife, and support biodiversity. Conserving ecosystems is important to maintain the balance of nature and ensure a sustainable future for all living organisms.

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