What is the importance of the ozone layer?

• A. It supports plant growth
• B. It protects Earth from harmful ultraviolet radiation from the Sun
• C. It regulates Earth's temperature
• D. It provides shelter for wildlife

Answer: (B)

The ozone layer plays a crucial role in protecting life on Earth by absorbing the majority of the Sun's harmful ultraviolet (UV) radiation. UV radiation can cause skin cancer, cataracts, and other health issues in humans, as well as damaging ecosystems and wildlife. By filtering out these harmful rays, the ozone layer helps to ensure that living organisms can thrive without the dangerous effects of excessive UV exposure.

While supporting plant growth, regulating temperature, and providing shelter for wildlife are all significant aspects of environmental health, the primary function of the ozone layer specifically relates to its protective capacity against UV radiation. This makes it fundamentally important for maintaining the health of both human populations and ecosystems worldwide.