which is the best topic sentence for the first paragraph of an essay about \effects of air pollution\? first…

which is the best topic sentence for the first paragraph of an essay about \effects of air pollution\? first of all, recycling can help conserve natural resources. first of all, water pollution is harmful to marine animals. first of all, air pollution can have a negative effect on human health.

which is the best topic sentence for the first paragraph of an essay about \effects of air pollution\? first of all, recycling can help conserve natural resources. first of all, water pollution is harmful to marine animals. first of all, air pollution can have a negative effect on human health.

Answer

Brief Explanations:

A topic - sentence should introduce the main topic of the essay. The essay is about effects of air pollution. The first option is about recycling, the second is about water pollution, and only the third is about air - pollution's effects on human health which relates to the essay's topic.

Answer:

First of all, air pollution can have a negative effect on human health.