ENERGY FLOW OUR ENVIRONMENT 15 Class 10th Biology (Practice Sheet) 1 What is the primary source of energy for most organisms? A. Geothermal energy B. Solar energy C. Wind energy D. Chemical energy 2 Which process converts solar energy into chemical energy in plants? A. Respiration B. Digestion C. Photosynthesis D. Fermentation 3 What type of food chain has dead organic matter at its base? A. Grazing Food Chain B. Parasitic Food Chain C. Detritus Food Chain D. Hybrid Food Chain 4 What type of chain involves exploitation of larger organisms by smaller ones? A. Grazing Food Chain B. Parasitic Food Chain C. Mutualistic Food Chain D. Omnivorous Food Chain 5 What do scavengers do in an ecosystem? A. Consume only plants B. Break down dead matter C. Hunt other predators D. Generate energy from sunlight 6 What is the primary source of energy for almost all organisms on Earth? 7 What process do plants use to convert solar energy into food? 8 What is the flow of energy from a producer to an apex predator known as? 9 How is dead and decaying matter utilized in the ecosystem? 10 What are the three different types of food chains in an ecosystem? Page 1 Email: Phone No: Website:
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