​Reforestation means:

Correct option is D

The correct answer is (D) planting new trees in the destroyed forests.

Explanation:
Reforestation means planting trees in areas where forests have been destroyed or degraded.

Information booster:

• Reforestation:
  • Restoring forests by planting trees in deforested or degraded areas.
  • Helps restore biodiversity, combat climate change, and prevent soil erosion.

Incorrect options explanations:

• Reinforcing forests:Not the meaning of reforestation.
• Taking care of animals in the forests:Relates to wildlife conservation, not reforestation.
• Visiting the forests:Not part of reforestation.