Question

that reflection on the hot pavement looks like water, but its only a ______.
1 barrier
2 filter
3 chasm
4 mirage

Explanation:

We need to choose the word that fits the context of a reflection on hot pavement that looks like water. A "mirage" is an optical illusion caused by atmospheric conditions, often seen on hot pavement that looks like water. "Barrier" is an obstacle, "filter" is for separating, and "chasm" is a deep gap, none of which fit the context of a false water - like reflection.

Answer:

1. mirage