Answer: I think its minerals?
Explanation:
Correct answer choice is :
<h2>B) Polypeptide </h2><h2 /><h3>Explanation:</h3><h3 />
Polypeptides are strings of amino drugs. Proteins are formed up of one or more polypeptide molecules. The amino acids are connected covalently by peptide bonds. Every amino acid has a bizarre R group, a special amino acid chain produces a polypeptide whose purpose is conditional upon its chemical structure.
Engineering controls are possible interventions intended to reduce worker exposure to biological,chemical and physical agents. They are divided into two categories, ventilation and non-ventilation controls. Ventilation controls are designed to control contaminants once released,like introducing clean air to a workplace, replacing contaminated air. Non-ventilation controls reduce process emission rate, like use of well fitting lids to liquid containers.
