Energy needs and sources Write about the energy needs of the world and the sources of energy that are available The energy needs of the world are unending and ever increasing. We need energy for transport, industry, lighting, warmth, cooking etc. Without sufficient energy, the airplanes will stop flying, industry will grind to a halt, cities will be plunged into darkness in short the world as we know it will cease to exist. There are many types of energy sources. Our ancestors used wood and othercombustible material for burning in order to generate heat and light. Today we make use of fossil fuel and we harness solar, wind, water, chemical and nuclear energy for powering the many devices that we have invented. Most of these energy sources are non-renewable, that is, they become depletedin time. An example is fossil fuel. Its supply is limited and it is a matter of time before it runs out. An example of a renewable energy source is wood. Trees can be grown but the process takes a long time. The use of some of these energy sources causes pollution. The burning of wood and fossil fuel produces smoke and other gases. Harnessing energy from nuclear fission produces dangerous by- products that are difficult to manage. By contrast, hydroelectric power, solar energy and wind energy are examples of non-polluting energy sources. As the population of the world keeps increasing, there is an urgent need to find and use more renewable and non-polluting energy sources. grind to a halt to stop slowly combustible able to burn easily depleted to reduce something in size or amount especially supplies of energy . \ The energy needs. dangerous by- products that are difficult to manage. By contrast, hydroelectric power, solar energy and wind energy are examples of non-polluting energy sources. As the population of the world keeps. grown but the process takes a long time. The use of some of these energy sources causes pollution. The burning of wood and fossil fuel produces smoke and other gases. Harnessing energy from.

Energy needs and sources Write about the energy needs of the world and the sources of energy that are available The energy needs of the world are unending and ever increasing. We need energy for transport, industry, lighting, warmth, cooking etc. Without sufficient energy, the airplanes will stop flying, industry will grind to a halt, cities will be plunged into darkness in short the world as we know it will cease to exist. There are many types of energy sources. Our ancestors used wood and othercombustible material for burning in order to generate heat and light. Today we make use of fossil fuel and we harness solar, wind, water, chemical and nuclear energy for powering the many devices that we have invented. Most of these energy sources are non-renewable, that is, they become depletedin time. An example is fossil fuel. Its supply is limited and it is a matter of time before it runs out. An example of a renewable energy source is wood. Trees can be grown but the process takes a long time. The use of some of these energy sources causes pollution. The burning of wood and fossil fuel produces smoke and other gases. Harnessing energy from nuclear fission produces dangerous by- products that are difficult to manage. By contrast, hydroelectric power, solar energy and wind energy are examples of non-polluting energy sources. As the population of the world keeps increasing, there is an urgent need to find and use more renewable and non-polluting energy sources. grind to a halt to stop slowly combustible able to burn easily depleted to reduce something in size or amount especially supplies of energy . \ The energy needs. dangerous by- products that are difficult to manage. By contrast, hydroelectric power, solar energy and wind energy are examples of non-polluting energy sources. As the population of the world keeps. grown but the process takes a long time. The use of some of these energy sources causes pollution. The burning of wood and fossil fuel produces smoke and other gases. Harnessing energy from.

There are some tips to save power which I think are very easy to apply. Firstly, we should use energy saving light bulbs in our house. It will help us to reduce our electricity bill. Secondly, we should use public transport if we need to go long distance. We can use bicycles for short distances. I think it is good for our health and economical. And remember, before going to bed, we should turn off all lights and other unused electrical devices. It's an easy way to save our planet.

Tet is a national and family festival. It is an occasion for every Vietnamese to have a good time while thinking about the last year and the next year. At Tet, spring fairs are organized, streets and public buildings are brightly decorated and almost all shops are crowded with people shopping for Tet. At home, every is tidied, special food is cooked,offerings of food, fresh water, flowers and betel are made on the family altar with burning joss- sticks scenting the air. First-footing is made when the lucky visitor comes and children are given lucky money wrapped in a red tiny envelope. Tet is also a time for peace and love. During Tet, children often behave well and friends, relatives and neighbors give each other best wishes for the new year.

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There are many ways we can do everyday to save energy. One simple way is to use low energy light bulbs. Second, we should turn off all electic devices like TVs, radios, computers and lights when we go out. When we go short distances, we can walk or go by bike instead of driving a car. When we go longer distances, we can choose to go by puplic trransport. If we do so, we can save money and at the same time we can limited the use of energy.

There are many diffirent sources of energy in the world. But our main sources of energy is fossil fuels. We have alternative sources of energy such as : solar energy, water power and so on . Although there are many sources of energy , we still have to be good for nature.(^,^)

   
 

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There are many sources of energy in this world. The rational use of energy sources is extremely important. We should turn off electronic devices in the house when not in use. When traveling short distances, we should ride a bicycle instead of driving a car. If we are going to travel longer distances then we should go by means of transport. By doing so, we have contributed to saving electricity and limiting energy use