Acomparison of a soil sample from the tread of a victim's shoe to the soil at the crime scene indicates the two are different. what is the most probable explanation?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

What four properties do all waves have in common