Which of the following is true about magnets? SELECT AN ANSWER A. Magnets are not made of metal.
B. Magnets can attract other objects.
C. Magnets are made in one color.
D. All trains are made of magnets.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Nonpoint source pollution is difficult to control because it

What energy is it when you flip on a switch on a lamp