Generated by claude-sonnet-4-6 · 2026-06-15 06:43 · grounding rag
Model Answer
Answer: B
Excessive use of disposable cups and plates generates non-biodegradable waste, negatively affecting the environment. Options A, C, and D are all environment-friendly practices.
Source: How Do Our Activities Affect the Environment?, Chapter 13
Explanation
- Options A, C, and D are positive/responsible actions that reduce environmental harm — they are eco-friendly, not harmful.
- Option B (excessive use of disposables) increases non-biodegradable waste, which causes serious environmental problems — this is the harmful human activity.
- Key examiner tip: The question asks what affects (harms) the environment, so look for the negative practice among the options.