Sustainable Fuels P3L3U11,AC1.1:2.5.17.

What is the main reason for the switch to sustainable fuels?

• Easy availability

• High energy yields

• Global warming

• High carbon emissions

Which of the following is an example of biomass fuel?

• Wood pellets

• Diesel

• Natural gas

• Coal

What is the principle behind biomass fuel being considered carbon neutral?

• It releases CO2 slowly

• It absorbs CO2 quickly

• It releases no CO2

• It is entirely sustainable

What is a potential downside of burning biomass fuel?

• It releases harmful toxins

• It is entirely sustainable

• It has no impact on the environment

• It releases only water vapor

Why is it doubtful whether the UK could produce enough 'home grown' biomass to be completely self-sustainable?

• There is no demand for biomass fuel

• The UK lacks the technology

• It is not a viable option

• It requires a lot of land

What is the most abundant element in the universe?

• Nitrogen

• Oxygen

• Carbon

• Hydrogen

What is the only bi-product of burning Hydrogen fuel?

• Carbon monoxide

• Methane

• Water

• CO2

What is the current use of Hydrogen as a source of fuel?

• As a substitute for natural gas

• Only in space exploration

• Only in electric cars

• In chemical and electronics industries

What is the main disadvantage of using Hydrogen as a fuel source?

• It is highly flammable

• It is not available in abundance

• It is not a renewable source

• It has a low energy yield

What is the main byproduct of burning biomass fuel?

• Water

• Carbon dioxide

• Methane

• Nitrogen