Answer:
in my opinion I think it's amino Acids
Boys need 2,400 to 3,200 a day, while girls need 1,800 to 2,400 a day.
Hope this helps!
Answer:
Humus
Explanation:
Also known as the uppermost layer of soil, that's for making soil more fertile due to its organic content.
Answer:
only three house flies were collected for an experiment
Biotic would mean living so fish and sea plants