Understanding the Ozone Layer and Greenhouse Effect

The video tutorial explains the ozone layer's role in absorbing UV radiation and its discovery by Charles Fabry and Anri Boison. It discusses the harmful effects of chlorofluorocarbons (CFCs) on the ozone layer, leading to ozone depletion. The greenhouse effect is described, highlighting how greenhouse gases like CO2 trap heat, contributing to global warming. The video also covers the negative impacts of increased greenhouse gases, such as melting ice caps and stronger storms, and suggests solutions like reducing emissions and recycling to mitigate these effects.

What is the primary function of the ozone layer in Earth's stratosphere?

• To produce oxygen for the atmosphere

• To absorb most of the sun's UV radiation

• To trap heat and warm the Earth

• To reflect sunlight back into space

Who were the scientists that discovered the ozone layer in 1913?

• Isaac Newton and Galileo Galilei

• Charles Fabry and Henri Buisson

• Marie Curie and Pierre Curie

• Albert Einstein and Niels Bohr

What are chlorofluorocarbons (CFCs) commonly used for?

• To generate electricity

• As a food preservative

• In air conditioners and aerosol spray cans

• As a fuel for cars

How do CFCs affect the ozone layer?

• They increase the ozone concentration

• They release chlorine that depletes ozone

• They have no effect on the ozone layer

• They create more ozone molecules

What is the greenhouse effect?

• The reflection of sunlight by clouds

• The trapping of heat by gases in the atmosphere

• The cooling of Earth's surface by wind

• The absorption of UV radiation by the ozone layer

Which of the following is not a naturally occurring greenhouse gas?

• Methane

• Carbon dioxide

• Water vapor

• Hydrofluorocarbons

What is the effect of increasing greenhouse gases on Earth's temperature?

• It increases the temperature

• It stabilizes the temperature

• It has no effect on temperature

• It causes the temperature to decrease

What has been a significant change in the last 100 years regarding greenhouse gases?

• A decrease in carbon dioxide levels

• A detrimental increase in carbon dioxide concentration

• No change in greenhouse gas levels

• A decrease in methane levels

Which of the following is a suggested way to mitigate the effects of greenhouse gases?

• Increase fossil fuel consumption

• Use energy-efficient products

• Deforestation

• Increase industrial emissions

What is one of the negative effects of an abnormal increase in greenhouse gases?

• Melting polar ice caps

• Global cooling

• Increased biodiversity

• Decreased sea levels