Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
Put your cursor on the page and click Enter/Return
Yes, you wouldnt be able to do thumb wars
The answer is C because sulfur is a rock, not an electrolyte.