What is rex most likely trying to figure out about the rock formation?

He is trying to figure out its age.

Explanation:

Rex is finding a strange and very interesting form of a rock. He took a small sample in order to do research. He was trying to measure the amount of radioactive uranium with the radioactive lead.

This way he wanted to show how fast are these objects falling apart depending on the chemical elements they contain.

eggs are a high protein food! dan is most likely to include them in his diet. according to my sources, "whole eggs are among the healthiest and most nutritious foods on the planet. they are loaded with vitamins, minerals, healthy fats, eye-protecting antioxidants and brain nutrients that most people don't get enough of. whole eggs are high in protein, but egg whites are almost pure protein."