Which pair of molecules both contain carbon atoms? fats and proteins water and carbohydrates nucleic acids and water oxygen gas and fats not nucleic acids and water

fats and proteins

Explanation:

The fat molecules are the important biomolecules which consists of carbon and hydrogen atoms. The arrangement of these atoms make the structure of fat hydrophobic which is soluble in organic solvent and insoluble in water.

The proteins are also the vital metabolic biomolecules some of them are regulatory others can be structural in nature. They consists of hydrogen, oxygen and carbon. These biomolecules also contains sulfur, phosphorus and nitrogen in composition.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.