Recycling is a technology that helps protect the environment and cut down on usage of raw materials. The steel, paper and glass industries recycle a lot. The largest recycler is the steel industry. It recovers more than 70 per cent of its original materials. For example, since 1988 they have produced the majority of new metal cans from old ones. Metal parts for cars and planes are other examples of recycling steel. Fragments of waste glass are widely used in construction. For producing writing paper and pens, used packing boxes are an ideal material. They are cheap and easy to recycle. Nowadays more and more recycling centres are appearing in our towns and cities., Nowadays solar energy is widely used as an alternative form of power. Solar panels transform the energy from the sun into electricity. The first plane that does not need fuel was constructed in France in 2015. It uses only the sun's energy. The panels are placed on the huge wings of the plane. It doesn’t fly very fast. Solar energy can make the plane move at only 140 miles an hour. However, the plane is able to travel round the world. It is safe and can successfully cross areas of bad weather. In the future, engineers hope to construct a model that people can fly in. Our dream of environmentally friendly transport may come true very soon. Would you like to take a flight on the solar plane?, Global warming is a result of human activity. In 1985 there was a big conference in Austria where 89 climate researchers from different countries took part. After long discussions the scientists declared that the climate of the planet had changed. Indeed, it is warmer now than it was years ago. It can be clearly seen in the north. In the Arctic some places are ice-free now and polar bears have lost the place where they lived. The sea level has risen as well. The situation is getting more and more serious. Global warming is a great problem which needs to be solved in the near future., We don’t realize how lucky we are to have clean water whenever we want. A lot of people around the world do not have such an opportunity. Did you know that more than 750 million people on the Earth do not have clean water to drink? Meanwhile, a lot of water is wasted and polluted. In 1993 the United Nations decided to celebrate the World Day for Water. Nowadays a lot of special events are organized in different countries. Their aim is to make people understand how important clean water is for their health, environment and agriculture. Water is essential for our life. We should think about saving it, as the fresh water supplies are limited. We need to keep it clean for ourselves and for future generations., Earth Hour is an event that encourages people around the world to switch off electricity at the same time for one hour. Of course, switching off the lights for an hour makes a small difference to the amount of energy we use. But the aim of the event is not to save energy but to get people to think about the planet they live on. Earth Hour started in Australia in 2007. More and more countries join the ecological movement every year. Now, millions of people from 178 countries switch off their lights for 60 minutes at the end of March. People in Russia participate in this event too –– large office buildings and small private houses go dark for Earth Hour., Human activity creates waste. The problem isn’t new and space is no exception to the rule. Dead satellites, rocket stages and other things are littering our planet’s orbit. They are getting dangerously close to space stations and there is a great possibility of an accident. Space stations could be completely destroyed by the rubbish. In 1983, a tiny piece of paint from a satellite made a big hole in the side window of a spaceship. There is a great need to “clean up” space and to take away 3,000 tons of space rubbish. To solve the problem, scientists and engineers are designing special spaceships that will collect and recycle space rubbish., The rainforest can be described as a thick and very tall jungle. The term rain comes from the great quantity of water that these forests get throughout the year. The rainforests are the world's greatest natural resources. They are called the lungs of our planet. Half of all the kinds of plants and animals that exist on the planet live in the rainforests. Unfortunately, the area with rainforests is being reduced due to global warming. 100 years ago, the rainforests covered 14 per cent of the earth’s surface. Now, it is only 6 per cent. Scientists say that if the process continues at this rate, the rainforests will have disappeared in 40 years., A zoo, also known as a zoological park or a zoological garden, gives people the opportunity to watch animals from different continents. There are hundreds of zoos all over the world. However, most of them are located in major cities. The first zoo in Russia was opened in 1864, in Moscow. It was a small zoological garden. On the opening day, only 287 animals were on display. Nowadays, the Moscow Zoo is one of the largest in Europe. The unique collection of the Zoo includes over 8000 kinds of animals and birds. Scientists study the animals’ behavior and reproduction. They also breed rare animals there to stop them dying out., Would you like to take a flight on the solar plane? Global warming is a result of human activity. In 1985 there was a big conference in Austria where 89 climate researchers from different countries took part. After long discussions the scientists declared that the climate of the planet had changed. Indeed, it is warmer now than it was years ago. It can be clearly seen in the north. In the Arctic some places are ice-free now and polar bears have lost the place where they lived. The sea level has risen as well. The situation is getting more and more serious. Global warming is a great problem which needs to be solved in the near future.,

ОГЭ УЧ Task 1 Ecology

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