Understanding Global Warming

The video explains global warming as the increase in Earth's surface temperature due to rising CO2 levels, which disrupts climate balance and affects human life. It identifies fossil fuel burning, deforestation, and electricity overuse as key CO2 sources. The greenhouse effect, caused by gases trapping solar energy, is crucial for life but can lead to excessive warming. To combat global warming, actions like reducing deforestation and electricity use are recommended to preserve the planet.

What is one of the primary causes of global warming?

• Increased levels of carbon dioxide

• Decreased levels of methane

• Decreased levels of oxygen

• Increased levels of nitrogen

Which of the following is NOT a source of carbon dioxide emissions?

• Planting trees

• Using air coolers

• Using fertilizers

• Burning fossil fuels

What is the greenhouse effect?

• A process where the Earth's surface cools rapidly

• A type of renewable energy source

• A phenomenon where greenhouse gases trap energy from the sun

• A method to reduce carbon emissions

Which gas is NOT considered a greenhouse gas?

• Nitrogen

• Methane

• Carbon dioxide

• Water vapour

What happens to the energy absorbed by the Earth's surface?

• It is used up by human activities

• It is returned to the atmosphere, with some trapped by greenhouse gases

• It is entirely reflected back into space

• It is completely absorbed by plants

What could happen if the greenhouse effect becomes stronger?

• The Earth could become warmer than usual

• The Earth could become cooler

• The Earth could lose its atmosphere

• The Earth could stop rotating

Which action is suggested to help combat global warming?

• Use more fossil fuels

• Stop unnecessary burning of wood

• Increase electricity usage

• Increase deforestation

Why is it important to combat global warming?

• To increase the use of fossil fuels

• To reduce the amount of sunlight

• To preserve the planet for future generations

• To increase the Earth's temperature