The central idea indicated in the passage above is that little things can be very weighty or problematic. Hence the use of the metaphoric language relating mosquitoes to the gravity of the moon.
A central idea is the dominant thought of theme or principle that the author of a text wants to communicate.
Another way to state the central idea above is:
"One must not belittle issues, because they can quickly escalate".
Learn more about central ideas at:
https://brainly.com/question/1914190
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