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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.
In our daily life, we rely on energy to live so it is very important if we don't have enough energy to use.So that we should save energy now.According to me,i think there are many ways to save energy and today i'll share with you some ways to save energy effectively.To begin with,to save electricity,we should turn off all the electric appliances when we don't use them such as gas stoves,washing machine,lights,fans,air conditioner,......Secondly,the water is also need to be saved.we have many tips to save it.we can save water by spend less time in the shower because the more time we spend on taking a shower ,the more water we use.Moreover,we must turn off the water if you don't use them.it can help you save a a large portion of water.Nextly,our houses can use solar energy or wind energy instead of electric energy.It helps you save more money.Thirdly,to save energy and petrol ,we can go to school or to work on foot,by bike or by public transport instead of motorbike and car.Therefore,the energy will be saving
If the pollution goes on, what will happen?
- Air pollution will cause people to be sick, causing bad consequences for the environment such as bad air, floods, erosion and global warming, the world will end up like a second-hand junk-yard, with all of its treasures quite place
What could you do in your school/ house to minimize pollution?
- Not throw the litters away, put them into garbage bin, grow trees and keep school, house clean
How can you save energy in your house?
- Use of solar energy, use leds instead of fluorescent lights
What should you do to save water/ electricity at home?
- Turn off lights and fans when not in use, do not use water when not needed
What will you do to reduce garbage/ reuse paper/ save energy in the garbage?
+ Reduce garbage: Put garbage bins around the schoolyard, not throw trash onto the water,....
+ Reuse paper: Made to carton, kraft paper used for: envelopes, bags, ....
+ Save energy: Use intelligent bins recognize human identity, save energy
At home you should turn off all the light,TV,...when you went out.Use the solar energy to save money,call the plumber when you see the pipe is broken.
At school you should turn off the fan,the light when you go home.Turn off the faucets after you wash you hands.Turn off the computer after school
Nowadays, energy is being run out more and more so it is one of the most important things of our life. We need to save energy because nobody of us can lives without energy. So why don't we start to do it right in our home? We have many ways to save energy in our home. One of those ways is using electricity, water and gas economically. Such as we should turn off the light in room when we go out or in unnecessary situations, avoid wasting water, shut the kitchen stove when stop cooking. Use a microwave instead of a stove to reheat food. Use rechargeable batteries instead of disposable batteries... Besides, we should use electrical equipments which are energy - saving. Such as using lights and fans that have low capacity, or using equipments which reserve electricty. Not only do these help us to save money but also they work effectively.
In addition, we should frequently check electrical equipments in our home in order to fix opportunely. In summary, we need to save energy so that energy isn't run out and continues to serve human's life.