What the purpose of the adjective part of speech in a sentence

Answer- an adjective provides more detail about a noun, like bi, small, fat and thin.

Explanation:

It usually modifies a noun. It makes the noun more distinctive.

The red house (that cuts out a lot of houses that aren't red).

The run down mansion. (that tells you quite a bit about the state of the mansion. Whoever owns it has run out of money).

The Green Goblin. That should  not require any explanation. What is a Goblin anyway?

Little red ridding hood.

D.when the base word ends with consonant + vowel + consonant and the suffix begins with a vowel

Explanation:

If you study English, you have heard of words ending in "consonant + vowel + consonant" (or CVC). These endings have a simple half rule: when the suffix begins with a vowel, the last consonant of the base word must be duplicated. Example: The base word is "stop" and the word "ed", when you add the base word with the suffix, the last letter "p" of the base word must be duplicated, becoming "stopped".