Organic matter and nutrients causes an increase in aerobic algae and depletes oxygen from the water column. This causes the suffocation of fish and other aquatic organisms. Sulfate particles from acid rain can cause harm the health of marine life in the rivers and lakes it contaminates, and can result in mortality.
Answer:
“The youth turned his head, shaken from his trance by this movement as if the regiment was leaving him behind.”
Answer:
Frequency of individuals with AA genotype is 
Explanation:
As per Hardy-Weinberg equation, frequency of allele "a" is 
Which means that 
where "q" denotes frequency of allele "a"
As per I equation of Hardy-Weinberg -

where "p" denotes frequency of allele "A"
Substituting the value of "q" we get ,

Frequency of individuals with AA genotype is represented as
which is equal to

Frequency of individuals with AA genotype is 
B. They provide supporting details. I apologize if this is incorrect.