Carbon Cycle and Combustion Quiz

Which of the following is a major store of carbon in the carbon cycle?

• Sunlight

• The Earth's core

• Oceans

• Wind

The process where plants use sunlight to convert carbon dioxide into glucose (sugar) is called:

• Respiration

• Combustion

• Photosynthesis

• Volcanism

What is the best definition of a 'fuel'?

• Any liquid substance

• A material that is burned to produce heat or power

• A chemical found only in rocks

• A gas that makes up the atmosphere

Fossil fuels like coal and oil are classified as:

• Renewable fuels

• Non-renewable fuels

• Incomplete fuels

• Gaseous fuels

The general word equation for any combustion reaction is:

• Fuel + Water → Carbon dioxide + Oxygen

• Fuel + Carbon dioxide → Oxygen + Water

• Fuel + Oxygen → Carbon dioxide + Water + Energy

• Oxygen + Water → Fuel + Carbon dioxide

What is the key difference between complete and incomplete combustion?

• The type of fuel being used

• The amount of light produced

• The availability of oxygen

• The speed of the reaction

Which harmful gas is produced during incomplete combustion but NOT during complete combustion?

• Carbon dioxide

• Water vapour

• Carbon monoxide

• Oxygen

The natural process where certain gases in the atmosphere trap the sun's heat is known as:

• The carbon cycle

• Photosynthesis

• Climate change

• The greenhouse effect

Which of the following is NOT a major greenhouse gas?

• Carbon dioxide

• Methane

• Oxygen

• Water vapour

What is a likely consequence for New Zealand due to increasing CO₂ levels and climate change?

• A decrease in sea level

• Colder average temperatures

• More frequent extreme weather events

• A decrease in the spread of diseases