Question

which objects tail always points away from the sun?
meteor
meteoroid
comet
meteorite

Explanation:

A comet is a celestial object composed of ice, dust, and rocky material. When a comet approaches the Sun, the heat causes the ice to vaporize, creating a glowing coma (atmosphere) and often two tails: a dust tail and an ion (gas) tail. The tails of a comet always point away from the Sun due to the solar wind (a stream of charged particles emitted from the Sun) and radiation pressure pushing the gas and dust away from the Sun.
A meteor is a "shooting star," which is a small particle from space (a meteoroid) that enters Earth's atmosphere and burns up, creating a bright streak of light. It does not have a tail that always points away from the Sun.
A meteoroid is a small rocky or metallic body in outer space. It is too small to have a tail like a comet.
A meteorite is a meteoroid that survives its passage through the Earth's atmosphere and lands on Earth's surface. It also does not have a tail that always points away from the Sun.

Answer:

comet