Which of the following is NOT a Greenhouse gas

• Water vapor

• Carbon dioxide

• Hydrogen

• Methane

What is the main reason for the increase of greenhouse gases in the atmosphere in recent centuries?

• A significant increase in volcanic eruptions

• The rapid increasing in the burning of fossil fuels due to industrialization

• Using aerosols

• An increase in ocean plastics

What is the greenhouse effect?

• A process that occurs when gases in Earth's atmosphere trap the Sun's heat.

• A process by which the earth's atmosphere is getting physically thicker over time.

• A process of reafforestation and tree planting.

• A process of the world getting cooler due to gases reflecting incoming solar radiation.

Which of the following is NOT a fossil fuel?

• Oil

• Coal

• Wood

• Natural gas

Which sector produces the highest percentage of greenhouse gases?

• Agriculture

• Transportation

• Electricity production

• Industry

What is the most common greenhouse gas?

• Ozone

• Water vapor

• Methane

• Carbon dioxide

TRUE/FALSE: All of the incoming solar radiation is absorbed by the earth's surface?

• True

• False

More greenhouse gases will continue to be released into the atmosphere over the next century. What impact will this have?

• A thicker atmosphere

• A cooler atmosphere

• A thinner atmosphere

• A warmer atmosphere

Do we need greenhouse gases?

• No- they block the suns rays.

• Yes- they help to keep the atmosphere warm enough for human life.

• No- they only cause more global warming.

• Yes- They prevent all gases from escaping out into space.

By how much have carbon dioxide levels increased since the start of the industrial revolution?

• 10%

• 25%

• 45%

• 60%