3. planting trees, trees and more. The tree is a source of clean water, and can also absorb carbon dioxide and release oxygen come out. The increase in the number of trees, help solve problems, both air and water pollution, and finally, knowledge of maintaining air and water is important to keep the air and water pollution is reduced.Although not to throw garbage into the river. The use of public transport. The tree planting and education will be the only way a little, but if we all remember, Ah kotlae water pollution causes decreased certainly.
การแปล กรุณารอสักครู่..