Question

how are uranus and neptune alike? a they are both hotter than the sun. b they are both made mostly of ice. c they are both the warmest of all planets. d they are both called the eighth planet.

Explanation:

• Option A: The Sun is extremely hot, and Uranus and Neptune are cold planets, so this is incorrect.
• Option B: Uranus and Neptune are both ice giants, meaning they are made mostly of ice (along with other elements), this is correct.
• Option C: They are among the coldest planets, not the warmest, so this is incorrect.
• Option D: Only one planet can be the eighth planet (Uranus is the seventh, Neptune is the eighth? Wait, actually, in the solar system, the order from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. So Uranus is the seventh, Neptune is the eighth. So they can't both be the eighth, so this is incorrect.

Answer:

B. They are both made mostly of ice.