Test 1 Section 4

You will hear part of a lecture on renewable energy—the uses of the power of the sea.

First, you have some time to look at questions 31 to 40.

. . . . . .

Now listen carefully and answer questions 31 to 40.

Producing enough energy to meet our needs has become a serious problem.

Demand is rising rapidly, because of the world's increasing population and expanding industry.

Burning fossil fuels, like gas, coal and oil, seriously damages the environment and they'll eventually run out.

For a number of years now, scientists have been working out how we can derive energy from renewable sources, such as the sun and wind, without causing pollution.

Today I'll outline marine renewable energy—also called ocean energy—which harnesses the movement of the oceans.

Marine renewable energy can be divided into three main categories: wave energy, tidal energy and ocean thermal energy conversion, and I'll say a few words about each one.