Question

air pollution essay
by sally
persuasive essay outline
introduction
thesis statement:
air pollution is a problem because it can cause lung cancer, heart disease, and asthma after exposure for long periods of time.
body paragraph 1
topic sentence:
body paragraph 2
topic sentence:
body paragraph 3
topic sentence:
conclusion
choose the correct answer.
which should be used for the topic sentence of body paragraph 1?
firstly, air pollution can cause lung cancer after exposure for long periods of time.
plants use carbon dioxide as part of their growth process.
eating well can help prevent many health problems.

Explanation:

The thesis statement focuses on air pollution causing lung cancer, heart disease, and asthma. For Body Paragraph 1's topic sentence, we need a statement related to one of these effects (here, lung cancer) to support the thesis. The first option addresses air pollution causing lung cancer, which aligns with the thesis. The second option is about plants and carbon dioxide (unrelated to the thesis's health effects), and the third is about eating well (also unrelated).

Answer:

Firstly, air pollution can cause lung cancer after exposure for long periods of time.