Answered

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The Montreal Protocol limited the world's use of chemicals like Chlorofluorocarbons (CFCs). Which sentence best indicates that the Montreal
Protocol led to improvements in the thickness of the ozone layer?
When ozone was first measured by satellite In 1979, the average concentration above Antarctica was 225 Dobson units (DU). In 1989, when the
Montreal Protocol took effect, it was 127 DU. The lowest level was 92 DU In 1994. By 2019, the value was back up to 167 DU.
Excerpt courtesy of NASA

Sagot :

Answer:

well it isn't the last sentence, but that's all i got for you, sorry bro (i got it wrong on plato/edmentum). i think the first one might be a better answer if i'm looking at this correctly. sorry that i'm not really that much help!

Explanation:

batolisis

The sentence that best indicates the Montreal protocol led to improvements in the thickness of the ozone layer is :  In 1989 when the Montreal protocol took effect, it was 127 DU ( second statement )

The Montreal protocol was an international agreement made and signed in 1987 by 46 signatory Governments The protocol was made to prevent the production and release of Ozone depleting substances like Chlorofluorocarbons into the atmosphere.

Hence from the statements listed above the statement that clearly signifies the importance of the Montreal protocol is In 1989 ( after the agreement took effect )is that the value of DU was 127 DU in 1989 .

learn more about Montreal  : https://brainly.com/question/16640287

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