click below
click below
Normal Size Small Size show me how
science/chpt 15key-3
chapter 15 key terms - 3
Question | Answer |
---|---|
troposphere | 1st layer - lowest (inner) layer of Earth's atmosphere - where we live |
stratosphere | 2nd layer - contains ozone layer - on top of troposphere |
mesophere | 3rd layer - middle layer - protect Earth's surface from being hit by most meteroids |
thermosphere | 4th layer - outer most layer - even though air is thin, it is very hot - divided into two layers - ionosphere & exosphere |
ionosphere | lower layer of the thermosphere - energy from sun causes gas molecules to become electrically charged - roadio waves bounce off ions and back to earth. |
exosphere | outer layer of thermosphere - |
scientist divide earth's atomospher into four main layers based on temperatures | tropospher, stratosphere, mesosphere and thermosphere |
sphere where Earth's weather occurs | troposphere |
Sphere where the ozone is located - 2nd layer | stratosphere |
sphere that protects the Earth from meteroids | mesosphere |
sphere that is the outermost layer | thermosphere |