Which statement is true of amino acids as polar amino acids? a. They are all negatively charged.
b. They are all positively charged.
c. The R groups have atoms with partial positive or partial negative charges.
d. These amino acids cluster away from the aqueous environment.

C

Explanation:

This is because The polar group consist of 10 amino acids, two are negatively charged that is aspartic acid and glutamic acid, 3 have a positive charge - arginine, lysine and histidine, and 5 are uncharged

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock