Multiple choice

Which of the following statements is/are false?

a. The process by which oxygen reacts with the digested food to form carbon dioxide, water vapour and heat energy is called respiration. b. Charcoal burns in air to produce carbon monoxide. c. Tall chimneys in factories carry harmful gases to the upper layers of air and prevent pollution of air to some extent.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this statement is false. Charcoal burns in air to produce carbon dioxide.

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