<span>Mass extinctions when at least half of all species die out. The largest mass extinction event occurred around 250 million years ago, when perhaps 95 % of all species went extinct. Now new ones appeared.
It was during Cretaceous.
Hope this helps !
Photon</span>
Global warming because the temps are getting hotter and the water is evaporating faster
Answer: The abundance of volcanoes and earthquakes along the Ring of Fire happens because of the amount of movement of tectonic plates in the area.
Hoped I helped , Sleppy -
Answer:
d
Explanation:
Hydration is a chemical reaction in which the major compounds form chemical bonds with water molecules, changing the rock or substance into something new.
