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).
Hat you want to ask, is what level in the food chain has the most energy at their disposal. The answer then would be the group at the bottom of the food pyramid. They would be closest to the original solar energy that was trapped by plants. Thus herbivores.... those that feed on plants... or those plankton feeders that feed on algae, should have collectively the most energy available to them.
<span>As one goes "up" the food chain/pyramid, the initial energy of the sun because of the laws of thermodynamics and the "work" of animals, is transformed into heat which is unavailable for "work". Thus the top carnivores have the least pool of energy available to them and thus their populations tend to be small.</span>
