The peptide bond is the link between two amino acids, which is formed by the reaction between the carboxylic group and amino group of two different molecules of amino acids.
The reaction between the carboxylic group an amino group result in the loss of water molecule. This kind of reaction is known as condensation reaction. It is also referred as dehydration reaction.
Answer:
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Hope this helps.
Agriscience is the right answer :)
Chimpanzee for the first one