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FAQs on Visual Worksheet: Biotic and Abiotic Factor-2 - Science for Class 3

1. What are biotic factors in an ecosystem?
Ans. Biotic factors are the living components of an ecosystem. They include all the organisms such as plants, animals, fungi, and microorganisms that interact with each other and their environment. For example, in a forest, trees, birds, insects, and soil bacteria are all biotic factors.
2. What are abiotic factors in an ecosystem?
Ans. Abiotic factors are the non-living components of an ecosystem. These include elements such as sunlight, temperature, water, soil, and air. Abiotic factors influence the living organisms in the ecosystem by affecting their survival, growth, and reproduction.
3. How do biotic and abiotic factors interact in an ecosystem?
Ans. Biotic and abiotic factors interact closely in an ecosystem. For instance, plants (biotic) rely on sunlight and water (abiotic) for photosynthesis. Animals (biotic) depend on plants for food and oxygen, while decomposers (biotic) break down dead organic matter, returning nutrients to the soil (abiotic), which supports plant growth.
4. Can you give examples of biotic and abiotic factors in a specific environment?
Ans. In a freshwater pond, biotic factors include fish, frogs, algae, and bacteria. Abiotic factors in the same environment include water temperature, pH level, sunlight, and the presence of minerals in the water. Together, these factors create a balanced ecosystem that supports various life forms.
5. Why are both biotic and abiotic factors important for ecosystems?
Ans. Both biotic and abiotic factors are essential for the health and balance of ecosystems. Biotic factors contribute to biodiversity and food webs, while abiotic factors provide the necessary conditions for life. The interplay between these factors ensures that ecosystems can function properly and sustain life.
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