south

This page lists questions and answers that were posted by visitors named south.

Questions

The following questions were asked by visitors named south.

The level of thorium in a sample decreases by a factor of one-half every 4.2 million years. A meteorite is discovered to have only 7.6% of its original thorium remaining. How old is the meteorite?
17 years ago

Answers

The following answers were posted by visitors named south.