Question

plastic pollution essay
argumentive essay outline
introduction
thesis statement:
plastic pollution is a problem because it destroys animal wildlife, water sources, and negatively affects human health.
body paragraph 1
topic sentence:
first of all, plastic pollution can cause the destruction of animal wildlife.
body paragraph 2
topic sentence:
another effect of plastic pollution is the pollution of water sources it creates.
body paragraph 3
topic sentence:

conclusion

which should be used for the topic sentence of body paragraph 3?
landfills are nasty, dirty places with great big, mean dogs.
if you dip your finger in water and rub the rim of a glass, it will make a neat sound.
lastly, plastic pollution can negatively affect human health.

Explanation:

The essay is about plastic pollution. The first body paragraph is about animal wildlife destruction, the second about water pollution. The third body paragraph's topic sentence should relate to plastic pollution's impact. The first option is about landfills (not directly plastic pollution focus), the second is about a physics - sound concept (irrelevant). The third option, "Lastly, plastic pollution can negatively affect human health", continues the essay's theme of plastic pollution's impacts (after wildlife and water) and is a logical topic sentence for Body Paragraph 3.

Answer:

The correct option is: Lastly, plastic pollution can negatively affect human health.