unit 103 powerpoint 2 Energy Use in Dwellings Quiz

What is a responsibility mentioned in the text regarding energy use in dwellings?

• To increase carbon emissions

• To reduce the carbon footprint

• To use only one type of energy

• To ignore energy consumption

Answer explanation

The text emphasizes the importance of reducing the carbon footprint in energy use within dwellings, making 'to reduce the carbon footprint' the correct responsibility. The other options contradict this goal.

What is true about different types of energy used in domestic dwellings?

• All forms produce the same carbon emissions

• Some forms produce high carbon emissions, others less

• Only renewable energy is used

• Energy use is not important

Answer explanation

Different energy types have varying carbon emissions. Fossil fuels typically produce high emissions, while renewable sources like solar and wind generate much less, making the correct choice that some forms produce high carbon emissions, others less.

What are the main fossil fuels mentioned in the text?

• Coal, gas, and oil

• Wood, solar, and wind

• Nuclear, hydro, and geothermal

• Biomass, tidal, and hydrogen

Answer explanation

The main fossil fuels are coal, gas, and oil, which are commonly used for energy production. The other options listed, such as wood and solar, are not fossil fuels.

Why is there a need to find cleaner sources of energy?

• Fossil fuels are unlimited

• Fossil fuels damage the earth's climate

• Cleaner sources are more expensive

• Fossil fuels are renewable

Answer explanation

Fossil fuels contribute significantly to climate change by releasing greenhouse gases when burned. This environmental impact highlights the urgent need for cleaner energy sources to protect the planet.

What do all fossil fuels produce when burnt?

• Oxygen and nitrogen

• Carbon dioxide and water vapour

• Methane and hydrogen

• Sulfur dioxide and ozone

Answer explanation

When fossil fuels are burned, they primarily produce carbon dioxide and water vapour as byproducts. This is a result of the combustion process, where carbon in the fuel reacts with oxygen.

Which of the following is one of the most damaging greenhouse gases?

• Methane

• Nitrous oxide

• Carbon dioxide

• Ozone

Answer explanation

Carbon dioxide is one of the most damaging greenhouse gases due to its high concentration in the atmosphere and long-term impact on global warming, making it a significant contributor to climate change.

What are some sources of carbon dioxide production mentioned in the text?

• Solar panels and wind turbines

• Power stations, boilers, and fires

• Electric cars and bicycles

• Hydroelectric dams and tidal power

Answer explanation

The correct choice, 'Power stations, boilers, and fires', are known sources of carbon dioxide production due to their combustion processes. In contrast, solar panels, wind turbines, electric cars, and hydroelectric power generate energy with minimal CO2 emissions.

Which of the following is a solid fuel?

• Natural gas

• Fuel oil

• Coal

• Electricity

Answer explanation

Coal is a solid fuel, while natural gas and fuel oil are liquid fuels, and electricity is not a fuel in solid, liquid, or gas form. Therefore, coal is the correct answer.

What type of energy source is petrol classified as?

• Renewable

• Non-renewable

• Sustainable

• Green

Answer explanation

Petrol is classified as a non-renewable energy source because it is derived from fossil fuels, which take millions of years to form and cannot be replenished within a human timescale.

Which of the following is a gas used as an energy source?

• Peat

• LPG

• Coke

• Fuel oil

Answer explanation

LPG (liquefied petroleum gas) is a gas commonly used as an energy source for heating and cooking. In contrast, peat, coke, and fuel oil are solid or liquid fuels, not gases.