1) Vaccum your house weekly.
2) Don't drop food crumbs on the floor. If you do, then sweep it immediately.
3) Clean your backyard well too, remove the weeds etc.
4) Wash the floors with water & soap weekly too.
C. The author uses a simile to compare the feeling of nervousness to melting because the sentence uses the word "like," which is an underlying hint to similes. Without it, it would be a metaphor.
