Climate Change and Its Effects

The video discusses global warming, its causes, and effects on the environment. It explains the greenhouse effect, deforestation, and fossil fuel usage as primary contributors. The video also covers climate change, its impacts on ecosystems, and the importance of individual actions to mitigate these effects. Additionally, it explores the ozone layer, UV rays, and their implications for health and the environment.

What is the primary cause of the rising average temperature on Earth?

• Deforestation

• The greenhouse effect

• Global warming

• The Earth's natural orbit

Which human activity is a major contributor to the greenhouse effect?

• Planting trees

• Using solar panels

• Burning fossil fuels

• Recycling waste

Which gas is primarily responsible for the greenhouse effect?

• Carbon dioxide

• Nitrogen

• Oxygen

• Helium

What is a significant consequence of climate change?

• Decreased global temperatures

• Rising sea levels

• Stable weather patterns

• Increased biodiversity

What is a natural cause of climate change?

• Deforestation

• Industrial pollution

• Variations in Earth's orbit

• Burning fossil fuels

What would be a direct result of all ice melting on Earth?

• Rise in global sea levels

• Increase in freshwater supply

• Stabilization of climate

• Decrease in global sea levels

What percentage of the Earth's surface is currently covered by ice?

• 20%

• 15%

• 10%

• 5%

What is the primary function of the ozone layer?

• To increase Earth's temperature

• To protect Earth from UV rays

• To absorb carbon dioxide

• To trap heat from the sun

What harmful effect can UV rays have on humans?

• Increased energy levels

• Improved vision

• Stronger immune system

• Skin cancer

What is a major human-made chemical that depletes the ozone layer?

• Methane

• Chlorofluorocarbons (CFCs)

• Carbon monoxide

• Nitrous oxide