Earth, the only one place where we can live in this universe, is
getting worse time to time because of humans. Our activities produce substances
that ruin environment. Luckily, we have realized that we cannot just sit down
and wait this planet become a place where we cannot live anymore. Go green!
This slogan has been so famous. Planting brand new trees, 3R (Reuse, Reduce,
and Refinement), decreasing air pollution are some way to keep the Earth
healthy.
What can we do to decrease air pollution?
