The weathering process caused by cycles of freezing and thawing of water in surface pores, cracks, and other openings
Answer:
I say for her to test her suspicion by going to see an allergist to diagnose the allergy.
Answer is: <span>functional groups.
</span>Functional groups<span> are specific </span>groups<span> that are responsible for the characteristic chemical properties of molecule.</span>
<span>Proteins have nitrogen and oxygen in functional group.
Nucleic acids and some lipids have phosphorus in fuctional group.
Carbohydrates have oxygen in functional group for example.</span>
The force of an object due mass and gravity.it can also be defined as the force exerted by gravity on a body