El debate energético – Cierto o falso

Biofuels emit carbon dioxide when burned, similar to fossil fuels. However, the plants used in biofuels absorb carbon dioxide from the atmosphere during their growth, making biofuels carbon-neutral. This means they do not contribute additional carbon dioxide to the atmosphere.

What do biofuels release when they are burned?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon dioxide

How do plants used in biofuels help in managing carbon dioxide levels?

• They release carbon dioxide into the air.

• They store carbon dioxide in the soil.

• They absorb carbon dioxide from the air.

• They convert carbon dioxide into oxygen.

Why are biofuels considered carbon-neutral?

• They do not emit any gases when burned.

• They are made from non-carbon materials.

• They add new carbon dioxide to the atmosphere.

• They balance the carbon dioxide absorbed and emitted.

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

• Biofuels are more harmful to the environment.

• Biofuels are carbon-neutral.

• Biofuels are made from non-renewable resources.

• Biofuels do not emit carbon dioxide.

What is the main environmental benefit of using biofuels?

• They are cheaper than fossil fuels.

• They do not contribute to new carbon emissions.

• They do not require any land to grow.

• They are easier to produce.