Select the most appropriate option to fill in blank number 2.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2, i.e. increasing.
The passage reads:
“Rising temperatures cause melting ice caps, (2) ______ sea levels and extreme weather patterns.”
Here, the intended meaning is that as Earth warms, ice melts, causing sea levels to go up. This is precisely the meaning of “increasing.”
Authoritative climate science sources repeatedly describe how rising global temperatures lead to melting glaciers and ice caps, which in turn increase sea levels due to added water and thermal expansion.
The United Nations, NASA, and WWF explain that this chain of events contributes to rising global sea level—one of the most serious consequences of climate change.
Thus, “increasing sea levels” captures the scientifically accurate cause-effect intended in the sentence.
Why the other options are not appropriate
Option 1: vapouring
This is not a standard adjective or idiomatic collocation in English. No climate-related idiom refers to “vapouring sea levels.”
Option 3: purifying
Although “purify” is a positive verb, it does not align with the context. Climate change does not purify oceans or sea levels; in fact, pollution and warming harm them.
Option 4: stabilising
The opposite of what’s happening. Sea levels are not stabilizing—they are rising. The context requires a word meaning “going up,” making “stabilising” incorrect.