th 3 1 The problem Acid Rain The problem starts here. Cars burn petrol, factories and power stations burn coal and emit toxic fumes. So, the air that we breathe becomes polluted. 2 Air pollution & acid rain This pollution is gathered in clouds and with the oxygen and water in the atmosphere it becomes acid. The winds carry the polluted clouds across long distances, far 1) ...... When it rains, this pollution lands on trees, houses, buildings, cars, clothes, everywhere! This is called acid rain, 2) ...... there is actually 'acid fog', 'snow' and 'sleet' in the same way! 8a they become toxic. This is water pollution and it harms. kills or wipes out fish and plant species. When acid rain flows through the soil, it poisons trees and plants. Acid rain 3) causes serious damage to important buildings and objects. 4 Good news The good news is that governments have been trying to reduce the air pollution that causes acid rain. 4)..... industries have been using new technologies for some time to help make factory smoke less harmful to the environment. But we need to do more! We can help reduce the amount of acid rain by using 5) cars less or by using solar power to heat our homes. When acid rain falls into lakes, streams, rivers and seas, 3 Water and soil pollution We all must work together to solve this problem before it's too late. Grammar Grammar Reference Present Perfect Continuous 4 Read the rule. Find examples of the Present Perfect Continuous in the text. 3 Acid rain poisons trees and other plants. 4 Acid rain damages buildings. 5 In winter we call it acid snow. 6 New technologies help to reduce pollu b) Find examples of the Passive Voi the text.