Which statement describes a controlled experiment? O A. It includes a group exposed to the factor being tested and a group
that is not exposed to the factor being tested.
о
B. It includes two groups, neither of which is exposed to the factor
being tested.
C. It includes two groups, both of which are exposed to the factor
being tested.
O
D. It includes a group exposed to one of the factors being tested and
a group that is exposed to another of the factors being tested.

What happens to light waves from a star as the star moves away from earth?

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

How do the measurements of charge at the different locations on the sphere compare to each other? the charge measurements are different at all locations on the sphere. the charge measurements are virtually not the same at all locations on the sphere except for the charge at the very top and at the very bottom that are equal. the charge measurements are virtually the same at all locations on the sphere except for the charge at the very top. at the top, the conductive sphere has a small disk that is made of different material. the charge measurements are the same at all locations on the sphere. what happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage source? nothing will happen because no charge goes around the surface of the sphere. the charge on the conductive sphere spreads out over the surface of the sphere; being greater in some specific locations on the sphere. the charge on the conductive sphere spreads out uniformly over the surface of the sphere. the charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.