Waste Management — Homi Bhabha Exam Biology MCQs with Solutions
Free Homi Bhabha Exam Biology Waste Management MCQs with step-by-step solutions (6 questions). Part of Ecosystem & Environmental Management. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Waste Management · medium · theory
Wastes that can be broken down by microorganisms into harmless substances are called:
A. non-biodegradable
B. radioactive
C. biodegradable ✓ Correct
D. plastic
Solution: Biodegradable wastes (e.g. food scraps, paper) are decomposed by microbes.
Q2 — Waste Management · hard · theory
Which of the following is a NON-biodegradable waste?
A. Cotton cloth
B. Vegetable peels
C. Plastic bag ✓ Correct
D. Paper
Solution: Plastics are not broken down by microbes and persist in the environment.
Q3 — Waste Management · medium · theory
The method of converting biodegradable kitchen and garden waste into manure is called:
A. recycling of metals
B. landfilling
C. composting ✓ Correct
D. incineration
Solution: Composting lets microbes decompose organic waste into nutrient-rich manure.
Q4 — Waste Management · hard · theory
The "three Rs" recommended for managing waste are:
A. Reduce, Reuse, Recycle ✓ Correct
B. Run, Rest, Repeat
C. Read, Write, Recite
D. Reduce, Remove, Reject
Solution: Reduce, Reuse and Recycle help minimise waste and conserve resources.
Q5 — Waste Management · medium · theory
Household waste is often separated into different coloured bins in order to:
A. confuse people
B. segregate biodegradable and non-biodegradable waste ✓ Correct
C. increase the waste
D. make it look colourful
Solution: Segregation at source makes recycling and composting easier and more efficient.
Q6 — Waste Management · hard · theory
Recycling of materials like paper and metal is beneficial because it:
A. wastes energy
B. increases pollution
C. uses more raw material
D. saves natural resources and reduces waste ✓ Correct
Solution: Recycling conserves resources, saves energy and reduces the amount of waste dumped.