A couple good questions would be: (assuming it's an experiment) Can it be redone with the same result and can the information being used be cited. Hope it helps!
Amino acids, and proteins. Hope this helps! :)
The duty of a citizen is to participate in voting.
Answer:
They needed new materials.European countries colonized most of Africa. In order to protect their colonies, the European nations began to build large navies and armies. *Hope I helped*
Explanation:
