Which material is the BEST conductor of heat at room temperature? O A. water
O
B. copper
O
C. sulfur
O D. air

Who is better, messi or cristiano, i need this for a chemistry class. asap

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

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.