Lightning is a sudden, violent flash of electricity between a cloud and the ground, or from cloud to cloud. A lightning fl ash, or bolt, can be several miles long. It is so hot, with an average temperature of 34,000° Centigrade, that the air around it suddenly expands with a loud blast. This is the thunder we hear.
Lightning occurs in hot, wet storms. Moist air is driven up to a great height. It forms a type of cloud called cumulonimbus. When the cloud rises high enough, the moisture freezes and ice crystals and snow flakes are formed. These begin to fall, turning to rain on the way down. This rain meets more moist air rising, and it is the friction between them which produces static electricity. When a cloud is fully charged with this electricity, it discharges it as a lightning flash.
Taken from Peter Haddock Ltd., Ref.083
Answer these questions based on the text.
1. What kind of text is it?
2. What is the best title of the text above?
3. What is meant by lightning?
4. When does a lightning usually happen?
5. What does the word "this" in the last sentence of paragraph 1 refer to?
6. What does the word "it" in paragraph 2 refer to?
7. How is a lightning formed?
