Macy observes the lake near a park is covered in green slime. over a few days she sees that the fish in the lake have started dying. what could
be a possible cause of this situation?
o
a.
the acid level of the lake has increased.
o
b.
an algal bloom has drained the lake of oxygen.
o
c.
industrial chemicals have poisoned the lake.
o
d.
the sediment level of the lake has increased.

(A) An algal bloom has drained the lake of oxygen.

Explanation:

Because "green slime" is algae and it needs oxygen just like the fish.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.