Forms of Energy
There are 2 categories of energy, kinetic and potential.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

What is the molar mass of a gas that has density of 2.054 g/l