Describe one advantage and one disadvantage of replacing standard bulbs with led lighting

Identify a specific example for each type of technology

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.

Draw two cyclic constitutional isomers of cis-1