What conclusion did the researchers from university of california san diego reach regarding the best type of material to use for beach nourishment?

sandy areas of a beach should alternate with cement areas to prevent erosion.

large, coarse grains of sand should be used since they remain on the beach longer.

boulders should be placed near the water's edge to prevent the current from taking the new sand out to the ocean.

sand mixed with soil should be used to promote plant growth and prevent erosion.

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

and after water is usually warmed by the sun the water temperature raises and then evaporates .

it's d - life cycles - apex