They contributed such that people started understanding and believing more and more in the fact that the Earth revolves around the Sun and not the other way around as was previously believed in the medieval ages by all the people.
<span>Copernicus posited a heliocentric or sun-centered conception of the universe; Kepler contributed the three laws of planetary motion; and Galileo's telescope led to observations of earth like planets rather than ethereal planets.</span>
Explanation: Natural gas is basically gas that comes from nature so if you use coal it creates natural smoke or gas. Also like fossil fuels create natural gas as well.
