Question

2025 astronomy fall final exam (1st semester)
all of the following are problems with telescope viewing except –
humidity light pollution
atmospheric conditions global warming

Explanation:

To solve this, we analyze each option:

• Humidity: Affects telescope viewing (e.g., fog, moisture on optics).
• Atmospheric conditions: Turbulence, clouds disrupt viewing.
• Light pollution: Reduces visibility of celestial objects.
• Global warming: Long - term climate change, not a direct problem for telescope viewing (unlike the others which directly impact the viewing environment).

Answer:

Global warming