Geo Exam Flashcards
(36 cards)
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%
why do we use water?
- agriculture
- workplace/school
- recreation
- at home
why is turning salt water into freshwater hard?
- It uses a lot of power and costs a lot of money for them to do
- It leaves behind a lot of salt which is put back into the ocean which makes it saltier and isn’t good for the environment.
- People say the water is too expensive and should be cheaper
- Some lost their home due to building the machines for desalination.
how much can Sydney’s desalination plant produce a day?
250 million litres.
what is a contour line?
These are lines on a map that join points of equal height above sea level in metres.
what does BOLTS stand for?
- border
- orientation
- legend
- title
- scale
where are the 5 desalination plants in australia?
Goldcoast, Sydney, Perth, Victoria, Adelaide.
what is a contour interval?
This is the difference in height between each contour line in metres.
what is a trig point?
The number next to the symbol is the height in metres at that point on the map.
what is a spot height?
The number next to the dot is the height in metres at that point on the map.
