What are the components for Protein, Nucleic Acids, Lipids, and Carbohydrates??

Could someone me with number one you

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution