Тест вправи №10

THE GEOTHERMAL POWER
The Earth’s biggest problem today is ________________(1). We usually use four things to make electricity: oil, coal, water or nuclear power. All of these produce terrible _________________________(2) problems.
Nuclear power leaves dangerous radioactive waste. All the others produce gases, and these gases cause _________________(3) rains and the greenhouse effect.
The geothermal power is an alternative source of energy.
The first geothermal ____________________(4) station in the world opened in Larderello in Italy. Today New Zealand is the country with the biggest percentage of its electricity from geothermal power.
The centre of the Earth is very hot. In some places that heat is not too far below the ground. We can pump cold water down into the hot rocks, and get hot water back. From this hot water we get steam to make _______________________(5).