Which two macromolecules contain nitrogen?
O A. Proteins and nucleic acids
O B. Lipids and vitamins
O C. Carbohydrates and proteins
O D. Carbohydrates and lipids

Option A) Proteins and nucleic acids

Explanation:

Proteins are composed of several amino acids with positively charged amino groups in their side chain. These amino groups (NH2) have nitrogen atoms in them.

Nucleic acids, as well have nitrogen atoms in the nitrogenous bases present in their structure. E.g DNA and RNA has Adenine molecules with two nitrogen atoms in its structures

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: