In the Hertzsprung-Russell diagram, the characteristics of the stars in different areas can be labeled as follows:
- Supergiants. - cool, bright (located at the top right of the diagram)
- Giants - hot, bright (located somewhat below the supergiants but still towards the left side of the diagram)
- Main-sequence stars. - hot, dim (middle diagonal line, with hotter stars on the left and cooler stars on the right)
- White dwarfs - cool, dim (located at the bottom left of the diagram)
So, to fill in the boxes with the correct characteristics:
- Item 7 (Supergiants) → cool, bright
- Item 8 (Giants) → hot, bright
- Item 9 (Main-sequence stars) → hot, dim
- Item 10 (White dwarfs) → cool, dim