17-1800's
I know that James Hutton is considered a father of modern geology and he was born during some where in the 1720's so that's the closest answer, also Charles Lydel was born during the late 1790's.
Sedimentary rock can change into metamorphic<span> rock or into </span>igneous<span> rock.</span>Metamorphic<span> rock can change into </span>igneous<span> or sedimentary rock. </span>Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted<span> magma.</span>
Answer:
It declined because in 2100 there weren't as many people alive then in 2020
Explanation:
