Question

roots and affixes
some common affixes
prefix
un-: also il-, im-, not, without
e.g. infertile, inappropriate, impossible
un-: not
e.g. unacceptable, unreal, unhappy, unmanned
suffixes
-er, -or: one who
e.g. trainer, protector
-ity, -ty: quality of
e.g. veracity
-sion, -tion: state of being
e.g. concession, transition
-ize, -ise: become
e.g. civilize
-able, -ible: capable of being
e.g. edible, presentable
-ic, -ical: pertaining to
e.g. musical, mythic
what is the meaning of microscopic in the following sentence? there was a microscopic amount of dust in the air.
microscopic is someone who is not large.
microscopic is a state of being altered.
microscopic pertaining to a small or minimal amount or size.

Explanation:

The word "microscopic" combines the root "micro-" (meaning small) and the suffix "-scopic" (related to viewing). In the sentence, it describes a dust amount too small to see easily, so it refers to a small or minimal quantity/size.

Answer:

Microscopic pertaining to a small or minimal amount or size.