Science ignment?

Alfred wegener was a geologist. In the early nineteen hundreds he proposed that all the continents were all once a big supercontinent called pangaea. His theory was that the continents drifted apart by a thing called continental drift, which means that the continents are moved by magma currents in the lithosphere. The mid atlantic ridge is a mountain ridge in the Atlantic ocean that formed from colliding tectonic plates. To find the youngest rock go to the center of the mountains.A seismograph is an istrument that measures an earthquakes size. The Richter Scale is used to rate earthquakes on a scale from 1-10. A fault line is a point in a plate where the plate is under stress and is cracks. An epicenter is the point on the earth's surface where the earthquake started. Seismec waves are energy waves released from an earthquake. Tsunamis/tidal waves occur when an earthquake occurs on a plate boundary line in an ocean or large body of water. Animals are useful because their senses are more inept than ours and can sense an earthquake b4 it happens. Talc is the softest known mineral, Quartz is the second- hardest mineral. The rock cycle is how rocks form or change into different forms.