Select the most appropriate option to fill in blank number 5.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. irreversible.
The most appropriate word to fill is "irreversible," as it conveys the idea that the effects of human-caused global warming cannot be undone or reversed.
This term accurately describes the permanent and unchangeable nature of the damage caused by global warming, distinguishing it from "heartbreaking" (which describes emotional impact), "contradictory" (which refers to inconsistency), and "Conditional" (which is not a valid term).