Answer:d.Paleozoic Era
Explanation:
Paleozoic Era is hallmarked by climate, animals & plants.
This Era includes the Ordovician Period, Silurian Period and the Devonian Period.
The Silurian Period is one during this era where aquatic plants and animals evolved.
Answer:
B.) an earthquake
Explanation:
earthquake, volcanoes, tsunamis and landslides are naturally occurring events that can rapidly change earth's surface
Polymerization would be the answer you're looking for.
Answer:
According to plate tectonics theory, Earth's outer shell is divided into multiple plates that slowly glide over the mantle. This slowly changes Earth's surface over time by merging, or separating, continents.