When gaseous argon is allowed to diffuse , it separates into lighter and heavier fractions. What does this suggest about the nature of argon ?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

Consider the story you just read. all but one of the choices below indicate that something is living.