Question

order the topics from broadest to narrowest. broader brain activity during sleep the activity of the human brain delta brain waves during deep sleep narrower

Explanation:

The activity of the human brain is the most general as it encompasses all brain - related activities. Brain activity during sleep is a subset of human brain activity, focusing on the sleep period. Delta brain waves during deep sleep are a very specific type of brain activity that occurs during a particular stage of sleep.

Answer:

1. the activity of the human brain
2. brain activity during sleep
3. delta brain waves during deep sleep