Answer: President pro tempore of the Senate ( president of a time)
Explanation: The president pro tempore of the senate or president at that particular point in time is an officer of the senate recognised by the constitution. He is usually elected by the senate, his job roles is to presides over the chamber in the absence of the vice president of the United States of America.
There is more coal than any other fossil fuel <span>with a mass of about 10,000 billion tons. Oil and gas together represent only a few hundred billion tons.</span>
spread of people, things, ideas, cultural practices, disease, technology, weather, and other factors from place to place.
Nuclear energy production produces a security risk, and many communities do not wish to have a plant nearby.