Answer:
<em>In order to begin reducing pollution, the United States needs to reduce fossil fuel levels by 20 percent in the next five years.</em>
Explanation:
A thesis statement summarizes in one phrase or sentence the main idea or position that will be presented or argued for, it does not talk about facts, it is not an opinion or a question.
In this speech as the topic is preserving the environment the best thesis statement would be “In order to begin reducing pollution, the United States needs to reduce fossil fuel levels by 20 percent in the next five years.”
Why is preserving the environment important? (this option is a question, so it cannot be a thesis statement); The trees in the park are forty-five years old and provide shade in summer and protection from the elements in winter. (this option have facts, so it cannot be a thesis statement); Our town can reduce the need for landfills if we start a recycling program. (this option is more like an opinion, it does not state an efficient position, so it cannot be a thesis statement).
