Understanding the Ozone Layer

The video explains the ozone layer's role in filtering harmful UV rays from the sun, which are essential for vitamin D synthesis but can cause skin cancer in excess. It highlights the ozone layer's protective function and discusses the detrimental impact of CFCs, which thin the ozone layer, increasing UV exposure and associated health risks.

What type of solar rays are responsible for heat on Earth?

• X-rays

• Infrared rays

• Gamma rays

• Ultraviolet rays

Which type of rays help in the synthesis of Vitamin D?

• Microwaves

• Ultraviolet rays

• Infrared rays

• Radio waves

What is the primary function of the ozone layer?

• To reflect visible light

• To filter ultraviolet rays

• To absorb infrared radiation

• To trap heat from the sun

How does the ozone layer act for our planet?

• As a light reflector

• As a heat conductor

• As a greenhouse gas

• As a sunscreen

What chemical was primarily responsible for thinning the ozone layer?

• Nitrous oxide

• Methane

• Carbon dioxide

• CFCs

What is a potential health risk due to increased UV exposure from a thinner ozone layer?

• Heart disease

• Skin cancer

• Diabetes

• Lung cancer