Some giraffes have long necks and some have shorter necks. the ones with longer necks can reach food sources like tall trees as well as eat grasses on the ground. how will this difference most likely the giraffe population?
a) their number will remain unchanged.
b) over time, more will have longer necks.
c) giraffes will move from place to place for food.
d) there will be great differences among the giraffe population.

Answer: Over time, more will have longer necks.

Explanation :

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides