What word means the ability to meet present needs without harming the future?
sustainability
pollution
emissions
The gradual rise in temperature around the world is called ______.
carbon dioxide
global warming
efficiency
Which gas is mainly responsible for the greenhouse effect?
environment
carbon dioxide
empty miles
The total amount of greenhouse gases produced by our actions is our ______.
carbon footprints
hybrid
renewable energy
The presence of harmful or poisonous substances in the environment is ______.
pollution
alternative fuel
efficiency
The surroundings in which people, animals and plants live are called the ______.
emissions
environment
empty miles
The production and release of gases, especially greenhouse gases, are called ______.
emissions
sustainability
hybrid
The ability to do a task well without wasting time, money or energy is ______.
global warming
efficiency
pollution
In logistics, driving a vehicle with no cargo is called ______.
empty miles
renewable energy
environment
A vehicle that uses two types of power, such as petrol and electricity, is a ______ vehicle.
hybrid
carbon dioxide
alternative fuel
Fuels that are not traditional gasoline or diesel, such as biodiesel or electricity, are ______.
global warming
alternative fuel
carbon footprints
Energy from sources that are naturally replaced, like sun or wind, is ______.
renewable energy
pollution
emissions