Geo Exam Flashcards
what are the 6 key processes?
- evaporation
- condensation
- transpiration
- precipitation
- infiltration
- surface runoff
what is groundwater?
Groundwater is an important part of the water cycle and it is the water that is found under the Earth’s surface in the cracks and spaces in soil, sand and rock.
what is a aquifer?
An aquifer is an underground layer of water held by a permeable rock.
what is a natural resource?
Natural resources are raw materials that occur naturally in the environment and which are necessary or useful to people. They include soil, water, mineral deposits
what is renewable resource?
Renewable natural resources are those things that can grow or be replaced in a short time for example plants and animals.
what is a non-renewable resource?
Non - renewable natural resources are those that cannot be replaced in a short time because they take thousands of years to form. An example is fossil fuels. We cannot make more oil, coal or gas and so they will eventually run out!
what is the process of evaporation?
Evaporation is the process that changes liquid water to gas water and rises up into the sky, which goes into clouds..
what is the process of transpiration?
This is similar to evaporation. Water vapour is released through the leaves of trees and it rises into the atmosphere.
what is the process of condensation?
Condensation is the process of water vapor turning back into liquid water.
what is the process of precipitation?
When hail, mist, rain, sleet, or snow falls from the clouds because it couldn’t hold any more water vapour.
what are the 3 forms of water?
- solid
- liquid
- gas
what are two reasons we can’t use the World’s water?
1) We can’t use the majority of the world’s water without it being filtered because the water is so salty that it would kill all humans, animals and plants.
2) Another reason we can’t drink unfiltered water is because of how polluted it is.
how much of the world’s water is in oceans?
97.5%
how much of the world’s water is fresh?
2.5% (but most of it is locked up in glaciers, snow, ice)
how much of the world’s water is left in rivers, lakes, wetlands, soil and in the bodies of animals and plants?
0.4%