What is an Oort cloud?
A. a cluster of asteroids
B. a swarm of comets far from the sun
C. the cloud a meteor produces in the atmosphere
D. the same as a coma of a comet
Answer: B. a swarm of comets far from the sun
What is an Oort cloud?
A. a cluster of asteroids
B. a swarm of comets far from the sun
C. the cloud a meteor produces in the atmosphere
D. the same as a coma of a comet
Answer: B. a swarm of comets far from the sun