Question

Underline the adverbs and write what kinds they are
1. This exercise is extremely difficult.

Answer 1

Answer:

extremely : degree adverb

Explanation:

They are called DEGREE ADVERBS because they specify the degree to which an adjective or another adverb applies.

Answer 2

Answer:

This exercise is extremely difficult.

Extremely is adverbs and it's type is adverb of degree.