Environment & Ecology · Environmental Engineering
Which of the following is a secondary air pollutant causing air pollution?
- 1Hydrocarbons
- 2Carbon monoxide
- 3Oxides of sulfur
- 4Formaldehyde✓
Correct answer
Formaldehyde
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Environment & Ecology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Environmental Engineering?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Environment & Ecology · Environmental Engineering