Fuels and Climate Change Quiz

Which process is essentially the opposite of photosynthesis, as it releases energy from glucose and produces carbon dioxide?

• Combustion

• Respiration

• Volcanism

• Deforestation

A major problem with incomplete combustion is that it produces a poisonous gas called:

• Oxygen

• Carbon dioxide

• Water vapour

• Carbon monoxide

Which of the following is the best example of a biofuel?

• Natural gas from deep underground

• Coal mined from the earth

• Ethanol made from corn or sugarcane

• Petroleum refined into petrol

The largest long-term store of carbon on Earth can be found in:

• The atmosphere

• All the living plants and animals

• Rocks and fossil fuel deposits

• The Earth's core

Besides carbon dioxide, another powerful greenhouse gas is methane. Which human activity is a major source of methane?

• Planting trees

• Using solar panels

• Farming livestock like cows

• Building nuclear power plants

Which statement best describes the difference between renewable and non-renewable fuels?

• Renewable fuels are solids, and non-renewable fuels are liquids.

• Renewable fuels can be replaced in a short time, while non-renewable fuels take millions of years to form.

• Renewable fuels produce no pollution, while non-renewable fuels are always clean.

• Renewable fuels come from underground, while non-renewable fuels come from plants.

If the amount of carbon dioxide in the atmosphere continues to increase, what is a likely consequence?

• The Earth's average temperature will decrease.

• The polar ice caps will expand and get larger.

• The planet will become better at reflecting the sun's heat back into space.

• The greenhouse effect will become stronger, trapping more heat.

What two things are always needed for any type of combustion (burning) to occur?

• Fuel and carbon dioxide

• Oxygen and water

• Fuel and oxygen

• Sunlight and fuel

How do the oceans play a role in the carbon cycle?

• They absorb carbon dioxide from the atmosphere.

• They create fossil fuels within a few years.

• They reflect all sunlight, cooling the planet.

• They only release oxygen into the air.

A direct result of rising global temperatures causing glaciers and ice sheets to melt is:

• A decrease in sea levels

• An increase in sea levels

• The creation of more fossil fuels

• A reduction of carbon dioxide in the air