Answer:
zircons
Explanation:
they are over 4.375 billion years old
Answer:
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.
Answer: 4
Explanation: speed= distance/time
The answer would be D) The tropical convection region because the states below SC are all tropical and the current would go up to SC. I hope this helps.
