Biology · Health and Diseases
Bronchitis, breathing problems, and the worsening of asthma are primarily caused by:
- 1acid rain.
- 2discharge of industrial waste in rivers.
- 3excessive use of fertilizers in agriculture.
- 4smoke✓
Correct answer
smoke
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 Biology?
Practice full-length Biology mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Health and Diseases?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Biology · Health and Diseases