Which of the following does not cause pollution?
Correct answer: C. H2
- A. CO2
- B. SO2
- C. H2
- D. CO
Explanation
Hydrogen gas is not ordinarily listed as a conventional air pollutant, whereas carbon dioxide, sulphur dioxide, and carbon monoxide can contribute to air pollution or its effects. The answer assumes H2 means elemental hydrogen, not a hydrogen compound.
Last updated
Practise Forest Ecology
837 free Forest Ecology MCQs from Forestry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Forestry questions like this
Forestry is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
5th June is celebrated as:
A biotic community comprises:
A branch of ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called:
A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:
A crocodile had just eaten a lamb when a hawk saw the crocodile attacked it, and consumed it. The hawk is in ecological terms: