Multiple choice

Which of the following products are produced from animal horns & milk instead of plants?

  1. tennis balls (Cellulose)

  2. glue (Casein)

  3. roads (Bitumen)

  4. photo film (Cellulose Acetate)

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Casein is a protein found in milk that can be processed to create a strong adhesive, whereas cellulose is derived from plants.