We should avoid when pollution or toxic A solution is to help reduce pollution. the planting to plant exploration, and solve the problem of pollution that factories released.
We should avoid when toxic pollutants found a solution to the problem is. Planting trees helps to reduce pollution. Tell them the plant and factory pollution emitted.
We should avoid when found pollution or toxic solution. Help the plant to reduce pollution. Tell the factory to know and solve pollution problems at the factory released.