…. can be an excellent source of free, renewable energy for poor farmers.
A. Turbine
B. Biogas
C. Solar panel
D. Bulb
Đáp án đúng là: B
Dịch: Khí sinh học có thể là một nguồn năng lượng tái tạo miễn phí tuyệt vời cho nông dân nghèo.
“Why is it called a …… source?” - “Because it can be replaced easily and quickly.”
….. source of energy is the source that can’t be replaced after use.
Someone’s carbon …. is a measurement of the amount of carbon dioxide that their activities produce.
Choose the best one (A, B, C or D) to complete the sentence
Nuclear energy is ……, but it is dangerous.
There are many available ….. power sources in Vietnam including sun, wind, water, etc.
The government has warned that Britain will face power ….. in the coming winters.
When you save energy, you not only save money, you also reduce the demand for …… such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.
Laos and Cambodia have big plans for building up to 11 …… on the lower Mekong.