1.) erosions is a change in the weather
as you see you got this problem wrong becuase Its c :)
btw i got same question are we on same schools lol
Answer:
The first part of finding out Lucy having ADA-SCID was when I realized there were no HIV proteins in her blood, getting rid of the possibility of her having HIV. Then, I realized she had a high number of Deoxyadenosine in her blood. This proves she has ADA-SCID because when the ADA doesn't work you find excess amounts of Deoxyadenosine in the blood.
Explanation:
A) a polymer. Polymers are large molecules made of small molecules called monomers.