Answer:
<h2>Fossil fuels are natural fuels such as coal or gas, formed in the geological past from the remains of living organisms.</h2>
The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great<span> change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land. so its B</span>
Answer: Emperor Constantine
Explanation:
He dedicated a “New Rome” on the site of the ancient Greek colony of Byzantium
