مراجعات ليالي الامتحان الأحياء : الاثنين الساعة 8 أ.معتصم عبود , الثلاثاء عربي تخصص فصل اول الساعة 3 أ.ضياء ابو الرز , الثلاثاء الساعة 8 أ.حسام عياش

درس Unit 5: Sources of energy

- Biomass would not be renewable if it was energy produced by burning wood, and the trees cut down for fuel were not being replanted, since this would mean that it was not being renewed


-. Which of the energy sources in exercise 3 do you think is the best

    for producing electricity? Justify your answer.

- I think it depends on the country you live in. For example, in Jordan there is a lot of sun, so the sun would be the best source for producing electricity

-Wind turbines are expensive to build and maintain although the electricity they generate does not cost much at all. Is wind power a good source of renewable energy?

- In my opinion, it is a good and clean source of renewable energy, but it may sometimes cost much money to produce electricity ; in this case it is a bad source of energy
generated by new conventional power plants. Wind energy is also a source of clean, non-polluting, electricity. Unlike other conventional sources of energy, wind plants do not emit air pollutants or greenhouse gases in the atmosphere. Another advantage is that wind turbines can be used to produce electricity in remote areas which are not connected to normal electricity power

On the other hand, wind energy has some disadvantages, such as, it depends on the strength of the wind which does not always blow when electricity is needed. This means that wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all. In addition, wind turbines can cause noise pollution