Many dead animals in the past changed to fossils while others preferred to be oil. In some rocks you can find the fossil footprints of fishes. Lime is a green-tasting rock. There is a tremendous weight pushing down on the center of the Earth because of so much population stomping around up there these days. Physics The law of gravity says no fair jumping up without coming back down.
Vacuums are nothings.
We only mention them to let them know we know they're there. Water freezes at 32 degrees and boils at 212 degrees. There are 180 degrees between freezing and boiling because there are 180 degrees between north and south. Some oxygen molecules help fires burn while others help make water, so sometimes it's brother against brother. When they broke open molecules, they found they were only stuffed with atoms but when they broke open atoms, they found them stuffed with explosions.