Question

Planetary geologists used meteorite dating and lunar rocks to determine that

A. the solar system is 4.6 billion years old

B. comets likely exist beyond the orbit of Pluto

C. meteoroids originate from interplanetary debris that was gravitationally swept up by planets

D. asteroids are fragments of a broken planet that once orbited between Mars and Jupiter​

Answer 1

The answer is A

Step-by-step explanation:

Meteorite dating and lunar rocks are being used by planetary geologists in order to determine that the age of the solar system which is 4.6 billion years old. These meteorites are being tested in order to determine their span of existence

Answer 2

Option (A)

The meteorites are the rocks from the outer space, that must have entered the earth's atmosphere in the geological past, causing a mass extinction event or asteroidal impacts. It may also have formed on earth during the time of the formation of earth. These rocks are very important to the planetary scientists as it helped in estimating the approximate age of the solar system. By using the radioactive dating method, it has been found that the minimum age of our solar system is approximate 4.6 billion years old. The composition of these meteorite and rocks are also studied and it was demarcated that they have originated from the asteroid belt that is present between the planets Mars and Jupiter.

Thus, the correct answer is option (A).