Ecology is an important part of our life
Air pollution is one of the most important problems on our planet
Solar energy is safe for nature
In Japan there are cars that eat on biofuel
Earth is the only place where there are living beings
Rainforests are the most exotic places in the world
Nuclear tests are being conducted in the United States
Garbage is polluting our planet
The environment needs our help to continue life on the planet
Environmental issues are the most important issues in everyone's life
There are animals on our planet that are in danger
