Question

order the topics from broadest to narrowest. broader how to observe a solar eclipse using a pinhole camera how to observe a solar eclipse how to observe astronomical phenomena narrower

Explanation:

"Astronomical phenomena" is a general term that includes various celestial events like solar eclipses. "How to observe a solar eclipse" is more specific as it focuses on one type of astronomical phenomenon. "How to observe a solar eclipse using a pinhole camera" is the narrowest as it further specifies the method (pinhole camera) for observing the solar eclipse.

Answer:

how to observe astronomical phenomena, how to observe a solar eclipse, how to observe a solar eclipse using a pinhole camera