Choose the correct options.

Cars ... petrol, factories and power stations burn coal and ... toxic fumes. This pollution is ... in clouds, and with the ... and water in the ... it becomes acid. The winds carry the polluted clouds across long distances, ... . This is water pollution, and it harms, kills or ... fish and plant species. When acid rain flows through the soil, it ... trees and plants. Acid rain ... causes serious damage to important buildings and objects. The good news is that governments have been trying to ... the air pollution that causes acid rain. ... industries have been using new technologies for some time to help make factory smoke less ... to the environment. We can help reduce the amount of acid rain by using ... cars less or by using ... to ... our homes.