EARTH 20 Study Guide - Winter 2018, Comprehensive Midterm Notes - Viscosity, Subduction, Plate Tectonics
Document Summary
Processes: physical, chemical, and biological ways in which events affect earth"s surface. Internal processes come from forces within earth. External processes come from forces on earth"s surface. Result from external energy from the sun. Hazard: natural process or event that is a potential threat to human life. Potential for an earthquake or volcanic eruption. Examples: earthquakes, volcanoes, tsunami, climate change, fires, floods, impacts, mass extinctions. Disaster: hazardous event that occurs over a limited time in a defined area. Not an increase in earthquakes, but an increase in the human toll. Un 1990"s decade for natural hazards reduction . Reduces the effects of something, like an earthquake. More people are living on the coast. Most expensive events typically caused by storms and occurred in us, Industrial nations experience the worst economic loss (compared to poor nations and developing nations) More people will die but it will be less economically damaging. Higher standards of living correspond to better construction, infrastructure, and.
