Question

fossil fuels essay
persuasive essay outline
introduction
thesis statement:
using fossil fuels is a problem for the same they pollute the environment, they are non - renewable, and they are accident - prone and dangerous.
body paragraph 1
topic sentence:
... is a problem because they pollute the...
body paragraph 2
topic sentence:
... result or negative effect of using fossil fuels is that they are non - renewable and will run out.
body paragraph 3
topic sentence
conclusion
choose the correct answer
which should be used for the topic sentence of body paragraph 3?

1. lastly using fossil fuels can be dangerous because they are accident prone and can cause disasters
2. hydrogen is the most abundant element in the universe;
3. transitioning to renewable energy is the best way to prevent the negative effects of fossil fuels.

Explanation:

The essay is about fossil fuels, and Body Paragraph 3's topic sentence should relate to the dangers of fossil fuels (as per the introduction's points: pollute environment, non - renewable, accident - prone/dangerous). The first option "Lastly, using fossil fuels can be dangerous because they are accident - prone and can cause disasters" matches the danger - related point for the third body paragraph. The second option is about hydrogen (off - topic), and the third is a conclusion - like statement (not a topic sentence for a body paragraph).

Answer:

The first option: "Lastly, using fossil fuels can be dangerous because they are accident - prone and can cause disasters"