Question 3 of 5 A scientist discovers that the turbidity of a river increased
over time. At the same time, its population of frogs grew
much smaller. When the turbidity of the river returned to
normal, the frog population recovered.
In what two ways can the frog population be used to monitor the river's water
quality?
A. It can indicate that the water is polluted.
B. It can indicate when the cloudiness of the water is too high.
C. It can be used to change the pH.
O D. It can be used to test for nitrates.

it is true my friend

the price of our current war is high; it costs money and it costs lives.

but it does not cost our pride. it does not cost the guilt that would arise from knowing that we did nothing to intervene while our neighboring nations fell to despotic leaders.

it does not cost the terror of knowing that our allies are unstable. it does not cost the fear that we, too, will be next to fall.

which sentence most accurately explains why the speaker's use of the parallel structure is effective in this passage?

a. it underscores that disagreement will not be tolerated and will be dealt with swiftly.

b. it makes the speaker seem like a decisive and capable leader.

c. it emphasizes reasons to fight and inspires listeners to aid the war effort.

d. it establishes the speaker's credibility by acknowledging the difficulties of war.