What Is the Basic Difference Between Comets and Asteroids

question 17

Multiple Choice

What is the basic difference between comets and asteroids?

• A) Comets always move in open orbits around the Sun and hence visit the Sun only once in their lifetime, whereas asteroids move in closed orbits.
• B) Comets always emit their own light, whereas asteroids only reflect sunlight.
• C) Comets are spherical, whereas asteroids are mostly irregular in shape.
• D) Comets are mostly composed of ices, whereas asteroids are mainly composed of rocks.

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