The ______ is a balance of everything in nature.
Ecosystem
______ fuels give us energy, such as coal and oil.
Fossil
Carbon dioxide is an example of a ______ ______, which absorb the sun's heat.
Greenhouse gas
Do not ______ your trash. You should throw it away.
Litter
______ ______ is bad for the rivers, oceans, and lakes.
Water pollution
______ energy is a clean and renewable energy.
Solar
______ energy is a free and renewable energy source.
Wind
______ water is a great way to protect the environment.
Conserve / Save
______ ______ is a great way to travel and save the environment.
Public transportation
Please place the plastic bottle in the correct recycling ______.
Bin
______ is cutting down all the trees.
Deforestation
Some animals are already ______ and no longer live on earth.
Extinct
The ______ erupted, sending smoke and ash into the air!
Volcano
______ ______ is a good way to save the environment.
Planting trees
The ______ covered the roads with water.
Flood
Please throw away your ______ in the bin.
Rubbish / Trash
Some animals are killed a lot by people and could be ______
Endangered
______ ______ is bad for us to breath.
Air pollution