Answer:
D. Hydrogen
Explanation:
The sun is a big ball of gas and plasma. Most of the gas — 91 percent — is hydrogen.
To determine the velocity of an object, you would need to know it's magnitude and direction, because velocity is the speed is a certain direction. <span />
Answer:
separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractionating column.
Opposite charges attract
Like charges repel
As they move water, ocean currents distribute heat and nutrients around the globe.