I need help to make sure that Identified the independent clause in each sentence and the dependent clause in the sentence.

Question

1. The Inca Empire which controlled the Amdes Mountains, survived.This would be the IC fewer than 100 years is the DP clause.
2. The term Inca was the name of the group's ruler (IC) Whom the Incas worshipped as a god. (DC)
3. Before the Incas expanded in the 15th Century,(DC) they were a small tribe near Cuzco in Peru (IC)

Answer 1

1. No. "fewer than 100 years" has no verb, so it is not a clause. It is an adverb PHRASE modifying "survived," the verb.
2 Yes.
3. Yes.