To revise prefixes.
To understand the prefixes mega- and micro-
Look at these words and identify the prefix im-
impossible, immortal, improper, immobile, impersonal, imbalance.
The prefix im- means not so it makes antonyms or opposites of the root words.
Notice the letters at the beginning of the root word.
im- is an alternative spelling of in- ( as in ‘invisible’, ‘incomplete’ or ‘incapable’