Question

Which text in this sentence functions as an adverb clause? Tina decided that if the route was too steep and dangerous she would take another route to get to the summit of the mountain and beat all the other climbers.

Answer 1

The adverb clause in this sentence is 'if the route was too steep and dangerous'. 

Answer 2

Answer: "if the route was too steep and dangerous"

Explanation: This whole clause, which starts with the subordinating conjunction if, modifies the verb "would take..." of the main sentence. A clause that modifies a verb (or an adjective, or another adverb) is therefore called adverb clause because of its function.