It can be made out of seeds. You can also use it to help mechanisms work smoother.
oil
A big building or a set of buildings where things are produced in big quantity.
factory
If you put plastic into the special bin, you hope that it will be...
recycled
Something that is safe for the environment.
eco-friendly
Different name of power.
energy
It is created by windmills.
wind power
The process of degenerating Earth's atmosphere so that it becomes warmer.
global warming
If you use sun to eg. boil your water, you use...
solar power
Oxygen, helium, or steam.
gas
It is small and makes energy.
battery
Smoke and fog.
smog
Waste that we put in the rubbish.
litter
You do it when you put paper to a separate bin, plastic to another one, etc.
waste segregation
Fuels generated by mines.
fossil fuels
"Dirty air" that is caused eg. by car fuels.
pollution
The process of becoming more aware of the environment, eg. by choosing zero-waste or vegan lifestyle.
going green