What characteristic best identifies it as a comet? Comets are streaks of light. Comets are larger than asteroids. Comets enter the Earth's atmosphere. Comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.

Question

What characteristic best identifies it as a comet?	Comets are streaks of light. Comets are larger than asteroids.	Comets enter the Earth's atmosphere.	Comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.

PsyDAG · Accepted Answer

From Wikipedia:

A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail.