Natural Energy Sources

A __________ that uses no energy from external sources.

• off-grid

• carbon-neutral

• fossil fuels

• low-emission

__________ can help in mitigating environmental pollution and climate change.

• energizes

• power

• self-sustainable

• biofuels

The deeper appreciation will motivate you and __________ you.

• power

• renewable

• energize

• solar panels

Wind and water are __________ fuel sources.

• self-sustainable

• renewable

• carbon footprint

• energize

The __________ charges a battery during the day that powers our property bulbs.

• fossil fuel

• carbon-neutral

• carbon footprint

• solar panel

The house is completely __________ except for the telephone line and some other stuff.

• carbon neutral

• off-grid

• self-sustainable

• renewable

The __________ from the travel industry is growing at rates never seen before.

• low-emission

• fossil fuel

• low-carbon

• carbon footprint

The goal is to establish a __________ population of wild fish in the river

• power

• carbon-neutral

• self-sustainable

• off-grid

__________ vehicles are vehicles that produce little pollution

• low-emission

• low-carbon

• fossil fuel

• renewable

The wind __________ the electrical generator.

• energizes

• biofuel

• powers

• off-grid