A geologist studies the earth, rock forms, and strata.
A geologist is a scientist who studies the structure of the earth (or other planets), together with its origin and development, especially by examination of its rock. A geologist studies fossils, soil and earth processes such as earthquakes, mountain formation, landslides, volcanic eruptions, tsunamis and floods. They prevent damage from natural disasters (such as earthquakes) by predicting when an earthquake might occur and how to prepare for it.
Natural selection is when mother nature decides a species is too du-mb to continue, so that species eradicates themselves. That or they evolve into something better.
Both meteor and meteorite are meteoroids that have penetrated the Earth's atmosphere while meteoroids are small parts of an asteroid or comet that are found orbiting the sun or near the Earth
