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Q1. In a food chain, which of the following is the correct order of energy flow? (2021)
Solution:
The correct order of energy flow in a food chain is Producer → Consumer → Decomposer.
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Q2. Which of the following is an example of a decomposer? (2023)
Solution:
Fungi are decomposers that break down dead organic matter, returning nutrients to the soil.
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Q3. What is the main function of producers in an ecosystem? (2019)
Solution:
Producers, such as plants, produce energy through photosynthesis, forming the base of the food chain.
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Q4. What is the primary function of decomposers in an ecosystem? (2022)
Solution:
Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.
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Q5. What is the significance of the energy pyramid in an ecosystem? (2019)
Solution:
The energy pyramid illustrates the flow of energy through different trophic levels in an ecosystem.
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Q6. What term describes the role of an organism in its ecosystem? (2022)
Solution:
Niche refers to the role and position a species has in its environment, including all interactions with biotic and abiotic factors.
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Q7. Which of the following cycles is involved in the process of photosynthesis? (2022)
Solution:
The carbon cycle is involved in photosynthesis, as plants absorb carbon dioxide from the atmosphere.
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Q8. What is a trophic level? (2020)
Solution:
A trophic level refers to the position an organism occupies in a food chain, indicating its energy level.
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Q9. What is the process by which energy is transferred from one trophic level to another? (2020)
Solution:
The food chain illustrates how energy is transferred from one trophic level to another in an ecosystem.
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Q10. What is the primary factor that determines the type of ecosystem in a particular area? (2022)
Solution:
Climate is the primary factor that determines the type of ecosystem in a particular area, influencing temperature and precipitation.
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