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1 tháng 5 2019

As you know, sources of energy like solar energy, wind energy,.. are very important. People use them for many things:cooking, heating,ect...But, almost the sources of energy have the disadvantages and advantages. There are two kinds of energy:non-renewable and renewable energy. Non-renewable is very popular in many countries. They are abundant, available and easy to use. However, they won't last forever and they're harmful for the environment. And, people will use renewable energy to solve the problems of non-renewable energy. Renewable sources of energy are forever and they're clean and safe, too. Nevertheless, they have some problems, too. For example, nuclear is clean but it's dangerous to use. Wind power has many advantages but it isn't available,... On the other hand, there are some sources of energy don't have some serious problems like solar energy. It's the reason why people use solar energy in the future. So, what should we do to save energy? We should use them properly and use them less. We should use less cars or motorbike, too. It also have the enviroment. Energy is very important, we should protect them for our life in the future.

11 tháng 4 2018

- What you should do to save energy

With fast growth of civilization there is also an ever mounting need for energy. Energy may be in the form of fuels or electricity. Petrol is a liquid fuel which is used widely nowadays. But this kind of fuels is likely to be exhausted at the rate man is using it recently.

To meet the challenge, various methods have been suggested. One is to minimize the man’s demand in using the energy. Non-essential consumption should be minimized. During certain days of the year, people all over the world turn off the electricity for 1 hour to save the energy. Modern gadgets consuming energy should only be used when they are absolutely necessary.

Energy conservation is possible through modernization of plant and equipment. People should replace the obsolete equipment by the modern ones.

Energy can be saved on transport by the following methods. People should commute by the rail rather than by cars and vans. The transport must be improved with a view to sparing the energy. Cities must be planned in such a way that the commuting distance from this place to others is minimized.

In industry, many things could be done to reduce waste of energy or to economize energy. The machine maintenance needs to be tightened; heater must be utilized properly. When systems are streamlined, economy in fuel is obvious. Instead of using materials requiring higher energy, those which require lower energy should be used.

We hope man with his ever rising urge for existence will cope up with this urgent problem and find alternatives.

11 tháng 4 2018

Bạn có thể làm ngắn hơn không. Cảm ơn

22 tháng 4 2018

Topic: SOURCES OF ENERGY

1. Tell me about some renewable sources of energy and nonrenewable sources of energy.

=> Renewable sources of energy : wind,hydro,solar ,...

Non-renewable sources of energy: coal,natural,oil ,.....

2. What types of energy does VN use most?

=> Viet Nam uses non-renewable most

3. What types of energy do you think VN will use more in future ?

=> I think Viet Nam will use renewable sources of energy more in the future

4. Why is the wind/sun called alternative sources of energy?

=> Because it's can replace easily



5. Do you think that saving energy is necessary ? Why ?

=> Yes, I think because nobody of us can live without energy

6. What should you do to save energy for your house or your school?

=> You should: use electricity more efficiently

turn of the lights when we aren't using them

use low energy light bulbs

use public transport

4 tháng 7 2018

rewable:wind,solar enery,hydro,nuclear,biogas...

non rewable:coal,oil,natural gas...i think people will use it more in the future

12 tháng 3 2020

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. Ỉ 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

8 tháng 1

My house primarily relies on electricity and gas for energy. Electricity powers most appliances and lighting, offering convenience but contributing to high consumption. Gas fuels the heating system, providing warmth efficiently but releasing emissions. To save energy, I've adopted simple habits: switching to LED bulbs, unplugging devices not in use, and using energy-efficient appliances. I've also improved insulation and sealed drafts to minimize heat loss. Moreover, I'm conscious of water usage, opting for efficient fixtures and practicing conservation. These steps not only save energy but also reduce environmental impact, aligning with my commitment to sustainability.

26 tháng 4 2018

Renewable energy describes a collection of energy technologies i.e. solar, wind, geothermal derived from sources that are never-ending and can be replenished time after time. Most countries across the world heavily depend on fossil fuels (oil, coal andnatural gas) as sources of energy to power their economies.

Fossil fuels are non-renewable forms of energy, meaning, they utilize limited resources that will ultimately deplete, hence, driving up overall energy costs. These very countries have responded to the threat by stepping up campaigns to embrace renewable forms of energy like solar and wind

26 tháng 4 2018

Vương Thị Thanh Hoa có chép mạng ko z

7 tháng 5 2017

1. What type of energy sources is wind?

WIND ENERGY.

2. What type of energy does VN will use more in the future?

WIND ENERGY, SOLAR ENERGY, HIDRO ENERGY, WATER ENERGY,...

3. What should you do ti save energy ?

WE SHOULD SAVE ELECTRIC, REUSE THINGS ,....

4. Do you think saving energy is easy?

YES, IT IS.

5. Talking some types energy sources you know?

SOLAR ENERGY , NUCLEAR POWER, ELECTRICITY,...