Use Figure 12-2 to determine the age of a rock sample that contains a parent isotope with a half-life of 100 million years and contains 1/32 of the parent isotope.

a) 200 million years old

b) 100 million years old

c) 500 million years old

d) 300 million years old

The length of the path between two points is what

Stone mountain was formed during the formation of the blue ridge mountains around 300-350 million years ago and is considered part of the appalachian mountains. it formed as a result of the upwelling of magma from within the earth's crust. this upwelling, or solidified to form the that became stone mountain.

What happens to rock when acid reacts with it?