which type of sentence is this? astronauts can experience bone loss, muscle weakness, and diminished heart…

which type of sentence is this? astronauts can experience bone loss, muscle weakness, and diminished heart function when they are exposed to environments with reduced gravity for a prolonged period of time. simple compound complex compound - complex
Answer
Brief Explanations:
A simple sentence has one independent clause. A compound sentence has two or more independent clauses joined by a coordinating conjunction. A complex sentence has one independent clause and one or more dependent clauses. A compound - complex sentence has two or more independent clauses and one or more dependent clauses. The given sentence "Astronauts can experience bone loss, muscle weakness, and diminished heart function when they are exposed to environments with reduced gravity for a prolonged period of time" has one independent clause "Astronauts can experience bone loss, muscle weakness, and diminished heart function" and one dependent clause "when they are exposed to environments with reduced gravity for a prolonged period of time". So it is a complex sentence.
Answer:
complex