Ex1:
Environment is a very important element of human life, animals, plants and everything, no environment is no life. The environment is the air we breathe every day for hours, the water people drink and everything they need for their lives. But now the most important thing to our life is the environment, it is seriously polluted. This pollution affects the health of all living organisms. The air is damaged by vehicle smoke in traffic, factories, and power generating stations create acid rain that can destroy entire lakes and forests. When fossil fuels: gas, oil and coal are burned to provide energy for cooking, lighting ... they form polluting gases. Not only on land but also at sea, oil spills pollute the seawater and kill marine life; Chemical wastes from drainage structures and plants, and man-made fertilizers from farmland, contaminate river water, spread disease and kill wildlife. Everything is caused by human existence. People create garbage! Each household generates about one ton of waste per year! Much of this waste is burned by people in incinerators or buried in huge landfills - both of which can endanger our environment.
But only humans can change and fix it. Pollution can be prevented with everything we do every day. First, people can use recycled paper to save trees. Second, try to avoid using plastic. It is very difficult to recycle. Everyone should refuse to use a shipping bag. If people cannot avoid buying plastic bags, they should use reusable plastic bags. In the end people have to bring their old clothes to charity stores. Everyone should also save energy to protect the environment. Turn off all electrical equipment when not in use, walk or use a bicycle instead of a car for short trips, keep a healthy life and keep the air fresh.
Keeping a clean environment is not just all of the ways mentioned before, but also a way to protect natural resources. That is the way to preserve wildlife. First we need to preserve the jungle, the rainforest, build more safari and national parks, plant more trees to live for wildlife. Second, we need to prohibit hunters from hunting animals too much outside the law.
Finally, we now know that the environment is the most important thing to life and we know how to protect and use it scientifically. Every day, we invent and increasingly find ways to protect the environment. I hope that in the future the earth will be cleaner.
Ex2:
Năng lượng tái tái đc : Renewable or renewable energy is energy from continuous sources that by human standards are limitless such as solar, wind, rain, tides, waves and geothermal energy. The basic principle of using renewable energy is to extract some of the energy from continuously evolving processes in the environment and put it into technical uses. These processes are often promoted especially from the Sun. Renewable energy replaces traditional fuel sources in four areas: power generation, hot water heating, engine fuel, and independent rural electricity systems.
K tái tạo đc : Non-renewable energies are types of energy that, once used, cannot be recovered in a short time. These energies have a very high capacity to create electricity, fuel, and thrust and are not too difficult to exploit. With exploitation and processing very popular in the world, most of the people rely on this type of energy, whether it is to provide electricity for living, thrust for travel or as fuel for cooking. Eat, this is the kind of energy that is indispensable. Over 85% of the energy used worldwide comes from non-renewable sources. Non-renewable energy is divided into two categories, fossil energy and nuclear energy. The three main types of fossil fuels are oil, coal and natural gas.
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