What were banned because of their damaging the ozone layer?
Đáp án A
Điều gì đã bị cấm vì làm hỏng tầng o-zone?
A. Chlorofluorocarbon
B. Metan và khí
C. Chất làm lạnh
D. Chất đẩy khí
Căn cứ vào thông tin đoạn 3:
“- and chlorofluorocarbons (CFCs), which were used in refrigerants and aerosol propellants until they were banned because of their deteriorating effect on Earth’s ozone layer.”
(Và CFCs được sử dụng trong chất làm lạnh và chất đẩy khí dung cho đến khi chúng bị cấm vì ảnh hưởng xấu đến tầng ozone của Trái Đất.)
What is the word "exaggerated" in the last sentence closest in meaning to?
Household (4) ____ like refrigerators, aerosol cans, air-conditioners and styrofoam containers contain ozone depleting chemicals.
The phrase “interfere with” in the passage can be used interchangeably with __________.
Which of the following is NOT one of the components of the negative effects that noise pollution has on people?
Heath effects are not only due to over-illumination or excessive (5) ________of light over time, but also improper spectral composition of light.
The author of the passage implies that secondhand noise pollution ______.
To this can be (1) ____ further impacts from exposure to indoor air pollutants such as radon and second-hand smoke.
All of the following impact the ecological dynamics EXCEPT ______________.