In your own words, explain how a glass-enclosed greenhouse is a good analogy for explaining the greenhouse effect in Earth's atmosphere.

Simply put, the glass in the analogy traps the sun’s heat inside the greenhouse, warming the interior and not letting the heat escape, just like greenhouse gases (CO2, methane, etc) trap the sun’s heat in the atmosphere, warming the planet and preventing heat from escaping back into space.

The sun can heat up the glass in which ultimately can the moisture henceforth creating the greenhouse affect.