In your opinion, which branch of science provides the most proof that the earth is approximately 4.6 billion years old? justify your response in two or more complete sentences.

In my opinion, I think geology provides the best evidence of the earth's age because we have physical evidence of the different layers of the rock formation. Sedimentary rock levels have shown that much of the earth was covered by water at one point, while there have also been rock formations higher than mountains at another point in earth's history. In relation to the branch of biology, evidence of fossils in rocks demonstrates life on earth in a past era.

Hope this helps!

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

bc blah

explanation:

bc blah