A total of seven seconds passes as a child makes five complete swings on a playground swing. The period of the swing is what?

Select the correct answer. what does the process of natural selection involve?

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element

The process of a material going through a change of state from a gas to a liquid