The superior and inferior vena cava are collectively called the venae cavae. The venae cavae, along with the aorta, are the great vessels involved in systemic circulation. These veins return deoxygenated blood from the body into the heart, emptying it into the right atrium.
Answer:
Microwaves, like other forms of electromagnetic radiation, can propagate through space (i.e. they don't require a medium like air or water to travel through).
Explanation:
A mirror only mists because the air is hot and the mirror is cold and if it is heated than the steam wont make the mirror become misty....
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