Given a scientific passage and an answer, generate a question for the given answer.

[EX Q]: Passage: Transcription takes place in three steps: initiation, elongation, and termination. The steps are illustrated in Figure below . Answer: transcription
[EX A]: Initiation, elongation, and termination are the three steps of what?

[EX Q]: Passage: The global pattern of precipitation is influenced by movements of air masses. For example, there is a global belt of dry air masses and low precipitation at about 30 N and 30 S latitude. Answer: air masses
[EX A]: The global pattern of precipitation is influenced by movements of what?

[EX Q]: Passage: Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the spinal cord. In other words, they carry information about the inside and outside environment to the brain. Answer: spinal cord
[EX A]:
Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the?