2. Water Pollution
3) Climate Change
I think 3 think very important. Because it 3 think always have on the earth. It was very danger can be destroy national of the earth. If keep do that one day the earth will be black color.
I think it important to celebrate earth day, all people will know the earth need keep safe try to do made the earth all blue air. And the water is not the black water and trash. why not plant tree it give a good air on the earth so why people cut down the tree, to large buildings ,factory ....
