Waste Generation and Management — Important Questions
ICSE · Class 9 · Biology
43 important questions from Waste Generation and Management for ICSE Class 9 Biology, with answers. Part of the ICSE Class 9 Biology syllabus.
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Important Questions from Waste Generation and Management
Which of the following are major categories of waste mentioned in the chapter?
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Domestic waste, Industrial waste, Agricultural waste, Municipal waste, e-waste
The chapter mentions five major categories: domestic waste from homes, industrial waste from factories, agricultural waste from farming, municipal waste from townships, and e-waste from electronic equipment.
Kitchen waste includes peelings of vegetables and fruits.
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True
Kitchen waste specifically includes peelings of vegetables and fruits, along with shells from nuts and eggs, washing water from pulses and rice, stale food items, and leftovers.
What does 'e-waste' stand for?
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Electronic waste
e-waste is the abbreviation of electronic waste. It refers to discarded electrical and electronic items such as old computers, TVs, radios, mobile phones, and batteries. So the full form is Electronic waste.
Which materials can be found in e-waste?
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Lead (harmful), Gold (valuable), Mercury (harmful), Silver (valuable)
e-waste contains both harmful substances like lead, cadmium, and mercury, as well as valuable materials like gold, silver, and copper that can be recovered and reused.
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