Вопрос:
Read the text and choose the right answer 153 – 160.
What Causes Waves?
Waves are beautiful to look at, but they can destroy ships at sea, as well as houses and buildings near the shore. What causes waves? Most waves are caused by winds blowing over the surface of the water. The sun heats the earth, causing the air to rise and the winds to blow. The winds blow across the sea, pushing little waves into bigger ones.
The size of a wave depends on how strong the wind is, how long it blows and how large the body of water is. At sea, the wind can build up giant, forceful waves.
A rule says that the height of a wave (in meters) is usually no more than one tenth of the wind’s speed (in kilometers). In other words, when the wind is blowing at 120 kilometers per hour, most waves will be about twelve meters. Of course, some waves may combine to form giant waves that are much higher. In 1993 the United States Navy reported the largest measured wave in history. It rose in the Pacific Ocean to a height of 34 meters.
153 What can waves destroy at sea?
154 Most waves are caused by the …
155 What waves can the wind build up at sea?
156 The size of a wave depends on the …
157 What makes the wind blow?
158 Where did the largest wave rise in 1993?
159 What was the height of the largest wave in the Pacific Ocean?
160 What is the story about?