Answer:
millions of years
Explanation:
Takes a long time to form, so millions of years.
Answer:
Phobos
Phobos is nearing Mars at a rate of six feet (1.8 meters) every hundred years; at that rate, it will either crash into Mars in 50 million years or break up into a ring.
Explanation:
Answer:
the vaccine causes the immune system to produce antibodies to the virus that causes the measles
Answer:c
Explanation:
the question is asking for another name for red blood cells since they bind with oxygen and hemoglobin in our body.