Which has a doughnut shape and extends from beyond Neptune’s orbit to about 100 times Earth’s distance from the sun?
a comet’s orbit
the Oort cloud
the asteroid belt
the Kuiper belt
the Kuiper belt
What are the main sources of meteoroids?
asteroids or moons
moons or comets
comets or asteroids
planetary rings or comets
comets or asteroids
3.
Where are most asteroids found?
in the Kuiper belt
orbiting planets
in the asteroid belt
in the Oort cloud
in the asteroid belt
What is a loose collection of ice, dust, and rock particles travelling through space called?
asteroid
meteoroid
meteorite
comet
comet
What is a loose collection of ice, dust, and rock particles travelling through space called?
asteroid
meteoroid
meteorite
comet
comet
What is a chunk of rock or dust in space called?
a meteor
a meteorite
an asteroid
a meteoroid