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Ecosystems Video Lecture | Science Class 5
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FAQs on Ecosystems Video Lecture - Science Class 5
| 1. What is an ecosystem and what are its main components? |  |
| 2. How do energy and nutrients flow in an ecosystem? | |
Ans.Energy flows through an ecosystem in a one-way direction, starting from the sun to producers (like plants) and then to consumers (animals). Nutrients, on the other hand, cycle through the ecosystem as they are reused by different organisms and decomposed back into the soil by decomposers.
| 3. What is the role of producers, consumers, and decomposers in an ecosystem? | |
Ans.Producers, such as plants, make their own food through photosynthesis and provide energy for consumers. Consumers are animals that eat plants or other animals to gain energy. Decomposers, like bacteria and fungi, break down dead organic matter, returning nutrients to the soil and completing the cycle.
| 4. Why are ecosystems important for the environment and human life? | |
Ans.Ecosystems are crucial because they provide essential services such as clean air and water, food resources, and habitat for wildlife. They also help regulate climate and support biodiversity, which is vital for resilience against environmental changes.
| 5. What are some threats to ecosystems and how can we protect them? | |
Ans.Threats to ecosystems include pollution, deforestation, climate change, and invasive species. We can protect ecosystems by promoting sustainable practices, conserving natural habitats, reducing waste, and supporting policies aimed at environmental protection.
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