Which of the following is true about acid rain?
a. it is more acidic that normal rain.
b. it is less acidic than normal rain.
c. all rain is acid rain.
d. there is no such thing as acid rain.

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.