The classifications of the carbon as primary secondary tertiary and quaternary depends on the number of the carbon atoms attached to a carbon. In case, the carbon is attached to a single carbon, then it is referred as primary carbon. If the carbon is attached to two carbons, then it is referred as the secondary carbon, if the carbon is attached to three carbons then it is referred as tertiary, and if the carbon forms all the bond with another carbon atom then it is referred as quatenary carbon.
The given below is the picture showing the primary, secondary, tertiary, and quarternary carbons in 4-isopropyl-2,4,5-trimethylheptane:
Based on the choices above, the choice that is appropriate or a way of answering as to what toxicology is the first choice which reads that medicine substance that has an adverse effect on living organisms. It is because toxicology is the study of science that concerns with effects, nature and as well as poison in which base on the chosen choice, it talks more about the substances' effects.
Answer:
After a glacier melts, it leaves a trail of debris, made up of rocks, grit, and soil, along the side of a valley.
Explanation:
