Scale is the proportion used in determining the relationship between an actual object and a model of the object.

For example, real estate developers often make models of shopping centers. If a model of a store has a scale of 1 centimeter equaling 20 feet, what is the actual length of a store that measures 5 cm in length on the model?
A.
100 feet
B.
50 feet
C.
200 feet
D.
20 feet

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water