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Earth day is celebrated on April 22.
it is a special day set aside every year to remind people to take care of the environment
We need to clean up.
On earth day,million of people all over the world gather to clean up their communities.
Earth day was first celebrated in the united states in 1970.
Its earth day.
This law said that cars and factories had to limit the amount of air pollution they could.
What did I do.
I have to take air from your car.
That year, the u.s congress formed the environmental protection agency.
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