which of the following were found to destroy ozone in the upper atmosphere?
A. sulfur oxides
B. CFCs
C. nitrogen oxides
D. carbon dioxide
1.B
2.D
3.A
4.C
100% Connexus
no lie buddy
So what is a CFC?
why did you take this so early?
connexus boi is right
To determine which of the following choices were found to destroy ozone in the upper atmosphere, we need to understand the phenomenon of ozone depletion.
Ozone depletion primarily occurs in a region of the Earth's upper atmosphere known as the ozone layer. Scientists have identified certain chemicals known as ozone-depleting substances (ODS) that contribute to the breakdown of ozone molecules.
Among the options provided, the substance commonly known to destroy ozone in the upper atmosphere is chlorofluorocarbons (CFCs), which are represented by choice B. CFCs were extensively used in the past in various industrial and consumer products, such as aerosol cans, refrigerants, and foam-blowing agents. When released into the atmosphere, the chlorine atoms in CFCs can catalytically destroy ozone molecules.
On the other hand, sulfur oxides (choice A), nitrogen oxides (choice C), and carbon dioxide (choice D) do not have a significant direct impact on ozone depletion. Sulfur oxides and nitrogen oxides primarily contribute to air pollution and the formation of acid rain. Carbon dioxide is a greenhouse gas that plays a significant role in global warming, but it does not directly destroy ozone molecules.
Therefore, the correct answer to the question is B. CFCs. These substances have been largely phased out due to their harmful effects on the ozone layer.