Explanation

A person who is blamed for the wrongdoings, mistakes, or faults of others, especially for reasons of expediency.

Explanation

The suffix "-less" means “without,” and gives the word a negative meaning — hopeless means without hope.

Useful, fearful, and careful have neutral or positive connotations due to their suffixes.

Explanation

Adding the suffix "age" to "wreck" forms "wreckage," meaning the remains of something destroyed.

"Age" is a common suffix used to form nouns indicating a result or outcome.

Explanation

The prefix "dis-" means opposite of or not, and when added to "agreement", it becomes "disagreement".

"Disagreement" means a lack of agreement or conflict in opinion.

Explanation

The vowel sound in "cool" is a long vowel sound, pronounced /u:/ as in "food."

It is held longer than the short /u/ sound.