Did You Know?
Plants help clean the air we breathe!
Good Externality
Sometimes, things can help others too!
Bad Externality
Some things can hurt others too!
What externality Does
It can make the air bad.
It can hurt fish in the water.
Some people can get sick.
It can help plants grow.
It can make parks nice for all.
It can change how we live.
More About externality
Long ago, people did not think about how their actions hurt others. Now, we know more. We try to help each other. We want to keep the air and water clean. This helps everyone.
In our daily lives, we see externalities all the time. When we ride bikes, we help the air. But when we drive cars, we can hurt it. We need to think about how we act.
In the future, we can make things better. We can use clean energy. We can plant more trees. This will help us and the Earth!








