2. What was the primary goal of the Apollo program? A. to place a telescope on the surface of Mars
B. to conduct scientific exploration of the moon
c. to learn how to protect Earth from solar radiation
D. to demonstrate that humans can survive in outer space

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.