Climate Change and its Causes

What is the greenhouse effect?

• A phenomenon that keeps the Earth warm enough for life to exist

• A process that cools down the Earth's atmosphere

• A natural occurrence that reduces the Earth's temperature

• A human activity that contributes to global warming

What is the main cause of the enhanced greenhouse effect?

• Burning fossil fuels

• Volcanic eruptions

• Deforestation

• Solar radiation

How do humans contribute to climate change through agriculture?

• By producing large volumes of methane

• By cutting down forests

• By releasing carbon dioxide from power stations

• By increasing the level of solar radiation

What is the percentage contribution of fossil fuels to global greenhouse gas emissions?

• Over 50%

• Less than 10%

• Around 30%

• Exactly 50%

What is the impact of deforestation on climate change?

• It reduces the amount of carbon dioxide in the atmosphere

• It increases the level of solar radiation

• It has no impact on climate change

• It contributes to rapid climate change

Which greenhouse gas has the highest global warming potential over 100 years?

• Carbon dioxide

• Methane

• Nitrous oxide

• Chlorofluorocarbons

What is the main reason for cutting down forests?

• To clear land for agriculture

• To increase the level of carbon dioxide in the atmosphere

• To reduce the Earth's temperature

• To generate more solar radiation

What is the impact of burning trees during deforestation?

• It releases carbon dioxide into the atmosphere

• It reduces the level of greenhouse gases

• It cools down the Earth's surface

• It has no impact on climate change

What is the percentage contribution of agriculture to global greenhouse gas emissions?

• Approximately 20%

• Over 50%

• Less than 5%

• Around 40%

What is the main cause of climate change according to the Intergovernmental Panel on Climate Change (IPCC)?

• Increase in carbon dioxide levels

• Volcanic eruptions

• Deforestation

• Solar radiation