Help my sis is timed thx fo yo time Grains become rounded primarily during
Oweathering at the outcrop
Olithification
O deposition
Otransportation

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Which statement best describes the flow of energy in this scenario

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as