Question

this is a small icy body that orbits in the solar system and develops a tail of gas as it approaches the sun: comet moon asteroid meteoroid iceberg! straight ahead!

Explanation:

To solve this, we analyze each option:

• Comet: A comet is a small icy body in the solar system that, when approaching the sun, heats up and releases gas and dust, forming a tail.
• Moon: A moon is a natural satellite of a planet (e.g., Earth's Moon), and it doesn't have a tail of gas when approaching the sun.
• Asteroid: Asteroids are rocky/metallic bodies, not primarily icy, and don't form gas tails like comets.
• Meteoroid: A meteoroid is a small rocky or metallic body in space; when it enters Earth's atmosphere, it becomes a meteor (shooting star), but it doesn't have a gas tail while orbiting the sun.
• "Iceberg! Straight Ahead!": This is a humorous option and not a celestial body in the solar system with such a tail.

So the correct option is Comet.

Answer:

A. Comet