Why do astronomers believe chondrite meteorites are about 4.6 billion years old-formed when the Solar system formed?
A. There is no other reasonable time period in the solar system's history when any meteoroids could have formed.
B. Radioactive dating can be used to determine their age.
C. Their chemical composition suggests they are pieces broken off Mars, which is believed to have formed at that time.
D. The chemicals they are made of were only common at the formation of the solar system.
Answer: B
You might also like to view...
What kind of civilization can life on Earth currently be classified as?
A) Type II B) Type III C) Type IV D) Type I
Estimate the number of pennies that would fit in a box one foot across by one foot wide by one foot tall
A) 5 × 102 B) 5 × 103 C) 5 × 104 D) 5 × 105 E) 5 x 104
Determine the potential difference Va ? Vb shown in the circuit below
a.
?5.0 V
b.
+5.0 V
c.
?10 V
d.
+10 V
e.
0 V
Tides are caused because different parts of the earth's oceans are at different distances from the moon
Indicate whether the statement is true or false