Alfred Wegener never convinced the scientific community that continents move on Earth's surface. Imagine you could send a message to the past. Explain to Wegener in a letter the evidence that he was missing and the theory of plate tectonics.

What gigantic island is primarily in the arctic circle?

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.

Which of these is most likely a characteristic of a non-radioactive daughter isotope after it is form from the parent isotope ? a. stable electrons b. stable nucleus c. positively charged atom d. negatively charged ion