Multiple choice

Directions: Choose the correct sentence that completes the paragraph.

S1: The 21st century has witnessed on unprecedented deterioration of the environment. S2: ___ S3: It is very important to curb their effects in order to breathe in a healthy environment.

  1. The government is taking regulatory measures for the same.

  2. Many factors are responsible for degrading it.

  3. The types are ocean acidification, ozone layer depletion.

  4. Soil erosion is also there.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Their' in S3 refers to 'many factors' in option 2.