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Mid-term SG
study guide for mid-term exam
Question | Answer |
---|---|
when molecules in liquid water absorb energy | the water evaporates |
when ice melts | heat is absorbed |
how most of the water enters the atmosphere | through evaporation |
how sublimation is different from evaporation | evaporation - liquid to gas, sublimation - solid directly to gas |
why scientists express humidity as a mixing ratio rather than as absolute humidity | mixing ratio depends only on mass; doesn't change when temperature or air pressure changes |
if vapor pressure increases | then the rate of condensation increases |
if temperature decreases | then the rate of evaporation decreases |
if the rate of evaporation is greater than the rate of condensation | then evaporation occurs |
if the rate of condensation is greater than the rate of evaporation | then condensation occurs |
most important factor that determines a region's climate | latitude |
2 main characteristics that describe the climate of an area | temperature and precipatation |
3 eons that are part of Precambrian time | Hadean, Archean, Proterozoic |
era we are currently living in | Cenozoic Era |
where the oldest rock layers are found | at the bottom |
tectonic plate | a piece of the lithosphere |
3 types of plate boundaries | divergent, convergent, and transform |
4 main layers of the sun | core, radiative zone, convective zone, and atmosphere |
hottest layer of the sun | core |
3 layers of the sun's atmosphere | photosphere, chromosphere, and corona |
sunspots | cooler regions of the photosphere |
why the corona of the sun is visible during a total solar eclipse | moon blocks the photosphere |
solar flare | a sudden eruption of charged particles from the sun |
how geomagnetic storms form | when particles from a coronal mass ejection disturb Earth's magnetosphere |
absolute age | age in years |
relative age | age of an object in relation to the ages of other objects |