- If we pollute the air, we will have breating problems.
- If people pollute the water, will be a lot of fish died.
- If more people cycle, there will be less air pollution.
- If people use reusable bag for shopping, they will help the environment.
- If we cut down trees in the forest, there will be more floods.
NOCOPY. cho mik ctlhn + vote + cảm ơn nhé