What must be done to crude oil for it to be separated ? it must be filtered or chemically altered

Part of molten rock at mid-ocean ridges

Why does asexual reproduction result in offspring with identicle genetic variation

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has: