There are 72 different kinds of known elements in the universe true or false

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.

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Express your answer using two significant figures. 1.7 km^2