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quiz 5.1-5.2
SALT Phy Science
| Question | Answer |
|---|---|
| hydrosphere | the sum of all water on a planet |
| where is the majority of earth's water supply contained | in oceans as saltwater |
| where is the majority of earth's freshwater stored? | in icebergs and glaciers |
| what is the largest source of liquid freshwater | groundwater |
| other than ground water and glaciers, where is the rest of the freshwater stored? | surface water, soil moisture and atmospheric moisture |
| hydrologic cycle | the process by which water is continuously exchanged between earth's various water sources |
| transpiration | evaporation of water from plants |
| condensation | the process by which a gas turns into a liquid |
| precipitation | water falling from the atmosphere as rain, snow, sleet or hail |
| distillation | evaporation and condensation of a mixture to separate out the mixture's individual components |
| residence time | the average time a given particle will stay in a given system |
| residence time for the ocean | 4000 years |
| residence time for glaciers and icebergs | 1000 years |
| residence time for groundwater | 2 weeks - 1000 years |
| residence time for the atmosphere | 10 days |
| residence time for lakes | 10 years |
| residence time for rivers | 2 weeks |
| suppose you are given a sample of water taken from somewhere in earth's hydrosphere. Would it most likely be saltwater or freshwater? | saltwater |
| if you were given a sample of freshwater taken from somewhere in earth's hydrosphere, where did it most likely come from? | glaciers or icerbergs |
| _______________________________________________if given a liquid source of freshwater from somewhere in the earth's hydrosphere, where did it most likely come from? | groundwater |
| water that was originally in a plant ends up in a cloud. What 2 processes of the hydrologic cycle caused it to be transferred in that way? | transpiration and condensation |
| rain that hits the land can travel as a liquid into a lake, river, stream, or ocean in 2 different ways. What are they? | surface runoff or groundwater flow |
| suppose a scientist studies 2 groundwater sources. The 1st is an underground river that flows quickly into a large lake. The 2nd is a large basin of underground water that moves much slower towards a small pond. Which has the longest residence time? | slow moving groundwater |
| in the hydrologic cycle name the ways water can enter the atmosphere | evaporation or transpiration |
| when a raindrop hits the ground, name 3 ways it can eventually end up in a river. | surface runoff, groundwater flow, evaporate into a cloud and be precipitated down |
| what process in the hydrologic cycle puts soil moisture into the atmosphere? | transpiration |
| in which body of water would the residence time be shorter: a quickly moving river or a lake that has no river outlets? | the residence time in the river is shorter |
| what must a lake have in order to be a freshwater lake? | a way to get rid of the water other than evaporation |
| what process makes it possible for ocean water to become freshwater | when water is evaporated, the salt is left behind and only the fresh water goes into the atmosphere. This is a form of distillation |
| why is the residence time longer in a lake than in a river? | because the water is moving in a river and has more ways of changing its residence |
| why is residence time longer in an ocean than in a lake? | because freshwater lakes have to have a source to move the water otherwise they would be saltwater. Also, in a saltwater lake, evaporation is more likely because the body of water is smaller |
Created by:
libbykaly
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