Read the passage and decide the following statements TRUE (T) or FALSE (F). Please write T or F next to each statement, in the column
II. Read the passage and decide the following statements TRUE (T) or FALSE (F). Please write T or F next to each statement, in the column.
WAVE POWER
About 25% of the world's electricity already comes from dams and rivers. Now, scientists are learning how to use the sea's power, too. What they're doing is collecting the energy
contained in waves. Here's how it works. First, water enters a special wave machine. This pushes all the air inside the machine up to the top. Then, the water leaves again and pulls the air back down. This pushing and pulling makes enough energy to work an electric motor.
At the moment wave machines are small and expensive. They don't produce much electricity, either. But in the future they will be bigger and cheaper. One day scientists think they will produce between 25% and 30% of our electricity.
- About a quarter of the world's electricity already comes from dams and rivers.
- Up to now, the sea's power hasn't been used.
- The water enters and leaves the wave machine to push and pull the air to generate. electricity.
- The word 'motor' in the first paragraph mostly means the engine.
- Wave machines are big, cheap and produce a lot of electricity now.