Doing exercise: Fill in the given below words: Global warming is sometimes referred to as the1effect. The greenhouse 2 is the absorption of energy radiated from the Earth's surface by carbon dioxide and other gases in the3, causing the atmosphere to become warmer. Each time we burn gasoline, oil, coal, or even natural gas, more carbon dioxide is added to the atmosphere. The greenhouse effect is what is causing the4 on the Earth to rise, and creating5 many that will begin to take place in the coming decades. Today, however, major 6 are taking place. People are conducting an unplanned global experiment by changing the face of the entire planet. We are destroying the 7 layer, which allows life to exist on the Earth's surface. Words: greenhouse, atmosphere, problems, effect, changes, ozone, temperature.