Discuss Forum

1. Often visible as smog , ozone is formed in the atmosphere form" hydrocarbons and nitrogen oxides , two major pollutants emitted by automobiles react with sunlight .

  • A. ozone is formed in the atmosphere from
  • B. ozone is formed in the atmosphere from
  • C. ozone is formed in the atmosphere from
  • D. ozone is formed in the atmosphere from

Answer: Option B

Explanation:

Post your comments here:

Name:
Mobile:
Email:(Optional)

» Your comments will be displayed only after manual approval.