Answer:
"Agar agar"
Explanation:
"Agar agar" is a natural polysaccharide produced by marine algae and is the most commonly used solidifying agent added to media (end concentration usually 1.5 % w/v).
False. Some signs may start out being iconic, but change over time with repeated use.
사랑해
Google translate
Oh no!
I'm afraid you should be writing this in Mathematics!