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.
cái này mik tìm trên mạng, có gì sai sót mong bn góp ý.
As you know, energy is very importsnt for our lives. We need energy to live and to work. If there isn't energy, our lives will be very difficult. However, the natural resources are being used up. So we should know how to save energy in the three following ways:
First: how to save water
Second: how to save electricity
Third: how to save petrol or gas
As for me, we should save water by taking a shower instead of a bath; using less hydro,...
We should save electricity by turning off the lights, TV, air conditioner,...before leaving the room; using low energy light bulbs,...
To save petrol or gas, we should use public transport for short trips; try walking or cycling instead of using cars or motorbikes; using less gas when cooking,...
To sum up, we should save energy because to save is also to money as to as natural resources.
(mình tự làm đó nha)
