Multiple choice

Replacing plastic cups by paper cups for selling tea in trains may be preferred because

  1. paper cups are biodegradable

  2. paper cups are non-biodegradable

  3. plastic cups are biodegradable

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Paper cups are biodegradable because they're made from plant fibers that microorganisms can break down naturally. Plastic cups are synthetic and persist in the environment for hundreds of years. Using paper cups reduces long-term environmental pollution.

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