discussing global energy issues

Some airlines want to become __________ by balancing out the pollution they create.

• low-emission

• carbon-neutral

• biofuel

Riding a bike to work is a __________ choice because it doesn’t cause much pollution.

• off-grid

• low-carbon

• low-emission

• biofuel

Cities with __________ rules try to lower pollution from cars and factories.

• low-emission

• biofuel

• fossil fuel

• carbon-neutral

People who live __________ produce their own power instead of using the main power supply.

• ow-carbon

• carbon-neutral

• renewable

• off-grid

Wind and solar are __________ energy sources that won’t run out.

• solar panels

• biofuel

• renewable

• fossil fuel

A __________ farm can produce all the food, water, and energy it needs on its own.

• solar panels

• carbon-neutral

• self-sustainable

• off-grid

Ethanol is a type of __________ made from plants that can power certain cars.

• solar panels

• biofuel

• carbon-neutral

• self-sustainable

Reducing our __________ is a good way to help the environment.

• carbon footprint

• fossil fuel

• low-emission

• self-sustainable

Oil and coal are __________ that people have used for energy for many years.

• low-carbon

• renewable

• biofuel

• fossil fuel

Many homes have __________ on the roof to create energy from sunlight.

• solar panels

• renewable

• carbon-neutral

• low-emission