- PowerScore Staff
- Posts: 938
- Joined: Apr 26, 2012
- Tue Jan 02, 2024 6:48 pm
#104650
Hi marioncarroll!
This is a must be true question. That means that, if you come across an answer choice that seems "likely true" based on the passage but is not necessarily true based on it, then you can eliminate that as an incorrect answer choice. It's important to remember, though, that things can be necessarily true based on the passage even if they aren't stated explicitly within it. There may be an array of things that are implied by a passage, and this can be fair game for a must be true question type.
Here, answer choice (E) asks, "Which constituent element of CFCs is most damaging to ozone?" This should direct you to the second paragraph, which discusses "constituent elements" (line 26) of CFCs. More specifically, the only constituent element mentioned is chlorine, which we are told is very devastating to the ozone layer. As Jeff mentions above, it would have been "a serious and problematic omission" to focus on the damage of chlorine but not mention a more damaging constituent, so the implication is that chlorine is the most damaging.
This is a must be true question. That means that, if you come across an answer choice that seems "likely true" based on the passage but is not necessarily true based on it, then you can eliminate that as an incorrect answer choice. It's important to remember, though, that things can be necessarily true based on the passage even if they aren't stated explicitly within it. There may be an array of things that are implied by a passage, and this can be fair game for a must be true question type.
Here, answer choice (E) asks, "Which constituent element of CFCs is most damaging to ozone?" This should direct you to the second paragraph, which discusses "constituent elements" (line 26) of CFCs. More specifically, the only constituent element mentioned is chlorine, which we are told is very devastating to the ozone layer. As Jeff mentions above, it would have been "a serious and problematic omission" to focus on the damage of chlorine but not mention a more damaging constituent, so the implication is that chlorine is the most damaging.