I think the best choice for this question is D. Filtered
Its because the ozone layers are weakening because of global warming
The answer would be all of the above
Answer:
the process of erosion
Explanation:
After erosion, earthquakes and all of mother nature stuff, erosion moves rocks and forms mountains and earthquakes move the tectonic plates and then everything above that moves up and forms a mountain
The ratio of parent to daughter atoms after two half-lives is therefore 1:3 (one-quarter to three-quarters).