What is biomass?

• A type of fossil fuel

• A biological material that can be burnt to produce heat

• A synthetic chemical used in manufacturing

• A mineral used in construction

Why does burning fossil fuels contribute to global warming?

• They release oxygen into the atmosphere

• They absorb carbon dioxide from the atmosphere

• They release stored carbon dioxide into the atmosphere

• They cool down the Earth's surface

How does biomass differ from fossil fuels in terms of carbon dioxide release?

• Biomass releases more carbon dioxide than fossil fuels

• Biomass absorbs carbon dioxide and does not release it

• Biomass releases carbon dioxide but does not add to global warming

• Biomass does not release any carbon dioxide

What process involves plants and trees absorbing carbon from the atmosphere?

• Combustion

• Photosynthesis

• Respiration

• Decomposition

What happens to CO2 when biomass fuel is burnt?

• It is absorbed by plants

• It is released to the atmosphere

• It is converted to oxygen

• It is stored in the soil

Which of the following is a characteristic of biomass compared to fossil fuels?

• Biomass has a higher heat output.

• Biomass is more dense.

• Biomass is sustainable if correctly managed.

• Biomass requires less storage space.

Which of the following is NOT a biomass material?

• Wood

• Coal

• Elephant grass

• Food waste

What is a requirement for storing biomass materials?

• Small storage facilities

• Large storage facilities

• No storage facilities

• Underground storage facilities

What is a potential crop rotation period for wood-related biomass?

• 1-2 years

• 3-5 years

• 6-8 years

• 9-10 years

Which of the following is NOT a common form of wood-related biomass?

• Logs

• Wood chips

• Wood pellets

• Plastic pellets