Multiple choice

which of the following correctly describes biodegradable plastics

  1. some plastics deteriorate when exposed to sunlight

  2. plastic that contain sugar can be broken down by bacteria

  3. degradable plastics usually bread down smaller pieces

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodegradable plastics encompass multiple types: photodegradable (break down in sunlight), biodegradable (sugar-based plastics broken down by microbes), and degradable plastics that fragment into smaller pieces. 'All of the above' correctly captures the variety of technologies.

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