Earthquakes are possible because the tectonic plates around the earth shift and move, converging, diverging, or transforming when in contact with one another. at divergent boundaries, rock layers pull apart, causing tensional stress shear stress compressional stress

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

Did you know that a blue wales tongue weighs more than an elephant?

Select the word from the list that best fits the definition a system made of 25 satellites