Greenhouse Effect

Which of the following gases is considered the most significant contributor to the greenhouse effect on Earth?

What is the primary cause of the recent increase in greenhouse gases in the atmosphere?

• Volcanic eruptions

• Human activities such as burning fossil fuels

• Solar flares

• Natural forest fires

Which of the following is NOT a greenhouse gas?

How does the greenhouse effect impact Earth's climate?

• It cools the Earth's surface

• It keeps the Earth's temperature stable and suitable for life

• It causes the Earth's surface to freeze

• It blocks all sunlight from reaching the surface

Which human activity is a major source of methane emissions?

• Driving electric cars

• Raising livestock such as cattle and sheep

• Planting trees

• Using solar panels

What is one major consequence of global warming in Australia?

• Decrease in bushfire risk

• More frequent and severe droughts

• Lower sea levels

• Colder winters

Which of the following is a strategy to mitigate the greenhouse effect?

• Increasing fossil fuel use

• Deforestation

• Using renewable energy sources like wind and solar

• Burning more coal

What is the main reason why greenhouse gases trap heat in the atmosphere?

• They reflect sunlight back into space

• They absorb and re-emit infrared radiation

• They block all forms of radiation

• They cool the atmosphere

Which of the following is a potential impact of rising sea levels due to global warming?

• Expansion of deserts

• Flooding of coastal areas

• Decrease in rainfall

• Formation of new mountains

Which of the following actions can help reduce an individual's carbon footprint?

• Using public transport instead of driving alone

• Leaving lights on when not needed

• Eating more red meat

• Increasing use of single-use plastics