Multiple choice

Which of the following statements is/are correct?

  1. Ethane is known as marsh gas.
  2. Hydrogen sulphide gas smells like rotten eggs.

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statement 1 is incorrect: Methane is known as marsh gas because it is formed by methanogenic organisms that can be found in marshy areas. Statement 2 is correct: Hydrogen sulphide and sulphur bacteria mostly smell like rotten eggs.

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