Read the sentence. When I go rock climbing, I prefer climbing in landscapes that present a challenge. What type of sentence is this? a simple sentence a complex sentence a compound sentence a compound-complex sentence

Complex

Explanation:

Complex sentences have one complete sentence (independent clause) and one noncomplete sentence (dependent clause). "When I go rock climbing," is not a complete sentence which means it is a dependent clause, and "I prefer climbing landscapes that present a challenge."  is a complete sentence which means it is an independent clause.  

I hope this was helpful. have a nice day.

1. list two reasons why fossil fuels should continue to be used as a source of energy in america.