Đáp án:

1. Non-renewable energy is a source of energy that will eventually run out. T

(Năng lượng không tái tạo là nguồn năng lượng cuối cùng sẽ cạn kiệt)

2. Renewable energy comes from natural sources, like sunlight, wind, water, and heat of the Earth. T

(Năng lượng tái tạo đến từ nguồn năng lượng tự nhiên, như ánh nắng Mặt Trời, gió, nước và sức nóng của Trái Đất)

3. Renewable resources are better for the environment, but they are limited in supply. F

(Năng lượng tái tạo tốt hơn cho môi trường nhưng có nguồn cung hạn chế)

4. Burning fossil fuels is harmful to the environment. T

(Đốt nhiên liệu hóa thạch có hại cho môi trường)

5. Wind is the primary source of hydroelectricity energy. F

(Gió là nguồn năng lượng thủy điện chính)

Giải thích các bước giải:

          We use many different energy sources to do work for us. Energy sources are classified in two groups - renewable and non-renewable. (1) Non-renewable energy sources are those that take millions of years to form and will run some day. It is energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of carbon and were formed millions of years ago. (4) The chemical reaction which takes place when we burn fossil fuels releases carbon compounds such as carbon monoxide and carbon dioxide into the air. Carbon dioxide is one of the green house gases which is contributing  to global warming and air pollution. On the other hand, renewable energy sources will never run out, are better for environment and do not cause pollution. (3) Renewable energy is often called green energy because it is  a natural energy, always available and does not have to be formed like non-renewable energy. The green energy is always there. For example, the Sun consistently shines, water is abundant, and winds blow throughout the year. (2) The five types include solar, energy from the Sun; geother energy from heat within the Earth; (5) hydroelectric, energy from moving water; biomass, energy from  dead plants and microorganisms and finally, energy from the wind.

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