Answer:
Movement of free water molecules from an area of low concentration to an area of higher concentration
Explanation:
The answer is Permian-Triassic extinction.
The Permian-Triassic extinction was 252 million years ago. It is known as The Great Dying because about 95% of all species died out due to environmental changes (volcanic eruptions, dry climate, melting of ice sheets, etc). This is also the only event in which many insect species wiped out.
The horsehoe crab because it was one of the first animals to ever live on earth
Its where one plate moves under another and is forced or sinks due to gravity into the mantle. This is where you get your sinkholes from.
