north carolina is a rapidly urbanizing state. this growth increases the number of homes, roads, and the need for goods and services. all of this can be a great boost to the local economy.
how could this growth result in a negative impact on the environment?
a) an increase in biodiversity.
b) an increase in the air purity.
c) an increase in the water quality.
d) an increase in the amount of waste.

A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.

Ab c or d ? i’m not sure what the answer is

Light waves are as they pass through the