Today, energy is increasingly exhausted. We need to save energy because none of us can live without energy. We have many ways to save energy in the home. One of the ways is to use electricity, water and gas economically, we should turn off the lights in the room when out or in unnecessary situations, avoid wasting water, turn off the stove when cooking stops. Besides, we should use low light bulb. We may also use public transport more often.

dịch

Ngày nay, năng lượng đang ngày càng cạn kiệt. Chúng ta cần tiết kiệm năng lượng vì không ai trong chúng ta có thể sống mà không có năng lượng. Chúng ta có nhiều cách để tiết kiệm năng lượng trong nhà. Một trong những cách đó là sử dụng điện, nước và gas một cách tiết kiệm, chúng ta nên tắt đèn trong phòng khi ra ngoài hoặc trong những tình huống không cần thiết, tránh lãng phí nước, tắt bếp khi ngừng nấu. Bên cạnh đó, chúng ta nên sử dụng bóng đèn thấp. Chúng tôi cũng có thể sử dụng giao thông công cộng thường xuyên hơn.

 Hello everyone, today I'd like to tell you some information about types and sources of energy. Energy is classified into two main groups: renewable and non-renewable.

The energy generated from natural sources such as the sun, wind, rain, and tides is called renewable energy. They are plentiful and can be generated again and again. They also have low carbon emissions so they are considered green and environment-friendly. Moreover, using renewable energy can reduce your electricity bills. Unfortunately, solar energy can be only used during the daytime but not during night or the rainy season. Geothermal energy also can bring toxic chemicals beneath the earth's surface to the top and can create environmental changes.

Non-renewable energy is the energy taken from other sources that are available on earth.They are limited and will run out in the future. They can't be re-generated in a short time.Fossil fuels - natural gas, oil and coal - are examples of them. They are cheap and easy to use. However, when burnt, they release toxic gases in the air so they cause serious environmental changes such as global warming. And the important thing is that non-renewable sources will expire someday.