When is Earth Day celebrated?

Correct option is C

The correct answer is (c) 22 April

Earth Day is celebrated annually on April 22 to promote environmental awareness and protection. It was first observed in 1970, initiated by U.S. Senator Gaylord Nelson, and has since become a global movement involving millions of people in activities like tree planting, clean-up drives, and conservation efforts.

• Earth Day was first celebrated on April 22, 1970.
• It aims to raise awareness about climate change, pollution, and environmental protection.
• The Earth Day Network coordinates events in more than 190 countries.
• The Paris Agreement on Climate Change was signed on Earth Day 2016.
• The theme for Earth Day changes every year, focusing on different environmental issues.
  

• 4 April – No major environmental event is observed on this date.
• 16 February – Known for Kyoto Protocol (1997) coming into effect in 2005, an agreement to reduce greenhouse gases.
• 17 September – Observed as World Patient Safety Day.