Let's analyze the information provided for each planet to determine the most suitable answers for the statements.
First, considering Planet A:
- Distance from Sun: 1.52 AU
- Composition: Rocky mantle, iron core
- Gases in atmosphere: 96% carbon dioxide, 3% nitrogen, 1% other
- Number of moons: 2
- Rings: No rings
Now, considering Planet B:
- Distance from Sun: 19.22 AU
- Composition: Hydrogen, helium
- Gases in atmosphere: Mostly hydrogen and helium
- Number of moons: 27
- Rings: Faint rings
Based on this, we can identify that:
- Planet A, with a rocky mantle and iron core, is a terrestrial planet.
- Planet B, composed mostly of hydrogen and helium and having faint rings, is a gas giant.
Also:
- Planet A, being 1.52 AU from the Sun, is quite close relatively speaking and so it is likely relatively warm.
- Planet B, being 19.22 AU from the Sun, is much farther away and thus likely colder.
Thus, the correct statements are:
- Planet A is a __terrestrial__ planet.
- Planet B is a __gas giant__ planet.
- Planet A is __relatively warm__.
- Planet B is __cold__.
So, selecting the correct answers:
```
Planet A is a terrestrial planet. Planet B is a gas giant planet. Planet A is relatively warm. Planet B is cold.
```
