Scientists infer that early north american humans hunted the mastodon. carbon-14 dating of the rib bone indicates that 2.4 half-lives have passed since the mastodon was killed. approximately how many years ago did the mastodon die?

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration

What is the correct lewis dot structure for arsenic?

The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace