Greenhouse Effect and Ozone Layer

The video explains global warming and the greenhouse effect, highlighting how greenhouse gases trap heat to maintain Earth's temperature. It discusses human activities that increase these gases, leading to global warming. The video also covers the ozone layer's role in blocking harmful UV rays and how CFCs damage it, offering solutions to protect it.

What is the primary reason the narrator gives for being punished?

• Littering

• Using too much water

• Not recycling

• Causing global warming

What is the greenhouse effect primarily responsible for?

• Causing rain

• Warming the Earth

• Blocking sunlight

• Cooling the Earth

Which gases are considered greenhouse gases?

• Argon and krypton

• Helium and neon

• Carbon dioxide and methane

• Oxygen and nitrogen

What human activities are increasing greenhouse gases?

• Planting trees

• Driving cars and running factories

• Recycling

• Using solar panels

What role do trees play in the balance of greenhouse gases?

• They block sunlight

• They release carbon dioxide

• They absorb carbon dioxide

• They produce methane

What is the function of the ozone layer?

• To reflect sunlight

• To produce oxygen

• To absorb UV rays

• To trap heat

What are UV rays known to cause?

• Headaches

• Cold and flu

• Skin cancer and cataracts

• Allergies

What substances are known to damage the ozone layer?

• Nitrogen

• Carbon monoxide

• Water vapor

• CFCs

What is a consequence of ozone layer depletion?

• More UV radiation reaching Earth

• Increased rainfall

• Lower global temperatures

• More plant growth

How can we protect the ozone layer?

• By increasing industrial emissions

• By using more fossil fuels

• By cutting down trees

• By using products without CFCs