Question

Which of these sentences contains an adverbial clause?
A. He told me where I could get some coffee.
B. What she pointed out is very significant in these times.
C. I do not know how to invest my money.
D. Most animals thrive where they can find food easily.

Answer 1

Only one of the sentences contain an adverbial clause. I lay out the explanations below.

(A) NO ADVERBIAL CLAUSE. "Where I could get some coffee" is part of a reported speech.
(B) NO ADVERBIAL CLAUSE. "What she pointed out" is a noun clause.
(C) NO ADVERBIAL CLAUSE. "How to invest my money" is the direct object of know; hence, it's a noun clause.

(D) "Where they can find food easily" is an example of an adverbial clause. It is an adverb of place, answering the question: Where do most animals thrive?