Answer:
C would be the correct answer
Both Radioactive dating of rocks retrieved from the world and Comparing cratering rates on one world to those on another.
Geologists can find the relative age of impact craters on a world because
the ones on top must be younger.
Scientists know the history of Earth's magnetic field because the magnetic field gets frozen into rocks, and plate tectonics spreads them out.
Hope it helps
Option a resident alien
resident it means coming from other place, not permanent, stranger or a foreigner
classification:
1)legal alien -tourists, legal permanent workers, student-visa, and guest workers
2)nonresident alien-tourist,on business,entertainers,sports people,under medical treatment
3)resident alien-temporary resident
4)enemy alien-national enemy
5)illegal alien- unlawfully authorized, overstayed and cross along the border line
The answer is D, noble gases are stable.
