Carbon and Oxygen react to form Carbon Dioxide. What are the reactants? A. Carbon and Dioxide
B. Oxygen and Carbon
C. Oxygen and Dioxide
D. CO2

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

Light waves can move through , but they travel fastest when they move through a(n) .