Question

taden has found a table of the atmospheric layers of the sun. however, he can’t make out the names of the layers in the chart.

	a	b	c
thickness	100 km	2000 km	millions of kilometers
temperature	5,500	6,000 to 20,000	2,000,000

what are the names of the sun’s layers described in columns a, b, and c?
○ a: corona; b: photosphere; c: chromosphere
○ a: core; b: chromosphere; c: photosphere
○ a: chromosphere; b: corona; c: core
○ a: photosphere; b: chromosphere; c: corona

Explanation:

To determine the Sun's atmospheric layers, we analyze the given data (position, thickness, temperature) and match it with known layer properties:

• Photosphere: Lowest atmospheric layer, ~100 km thick, temperature ~5,500 K (matches Column A).
• Chromosphere: Middle layer, ~2,000 km thick, temperature 6,000–20,000 K (matches Column B).
• Corona: Outermost layer, millions of km thick, extremely high temperature (e.g., 2,000,000 K, matches Column C).

We eliminate other options:

• Option 1 swaps Corona/Photosphere/Chromosphere (incorrect order).
• Option 2 includes "Core" (not an atmospheric layer, it’s internal) and misorders layers.
• Option 3 mislabels all layers (Chromosphere, Corona, Core are not ordered as Lowest→Middle→Outermost).

Only Option 4 (A: Photosphere; B: Chromosphere; C: Corona) aligns with the data.

Answer:

D. A: Photosphere; B: Chromosphere; C: Corona (Note: The original options use "○" without letter labels, but the correct option is the last one: "A: Photosphere; B: Chromosphere; C: Corona")