surface mining technique that removes underlying vegetation and strips of soil ad rock exposing underlying ore

surface technique in which a large pit is made in the ground to reveal ore

surface technique that remove the top of a mountain with explosives

surface technique of looking for minerals, metals, and precious stones in river sediments

unwanted waste material created during mining including mineral and other rock residues that are left behind after the desired metals are removed from the ore

techniques used when the desired resource is more than 100 m below the surface

method that uses hoses with small holes to release small amounts of water to plant roots. Although this method is the most efficient since only about 5% or less of water is lost it is the most expensive

method where the farm digs trenches or furrows along the crop rows to be filled with water which seeps into ground to provide moisture to plant roots. Inexpensive but 1/3 of water is lost to evaporation or runoff.

method that involves flooding the whole field with water. This can be achieved by diverting a stream or river by pumping water through a pipe. 20% of water is lost to evaporation and runoff. This can lead to waterlogged roots

method involving pumping groundwater into spray nozzles over a field. More efficient than flood and furrow sine only 1/4 of water or less is lost to evaporation or runoff. Can also lead to water logging.

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Apes Unit 5

Question	Answer
strip mining	surface mining technique that removes underlying vegetation and strips of soil ad rock exposing underlying ore
open-pit ming	surface technique in which a large pit is made in the ground to reveal ore
mountaintop removal	surface technique that remove the top of a mountain with explosives
placer mining	surface technique of looking for minerals, metals, and precious stones in river sediments
mine tailings	unwanted waste material created during mining including mineral and other rock residues that are left behind after the desired metals are removed from the ore
subsurface mining	techniques used when the desired resource is more than 100 m below the surface
drip irrigation	method that uses hoses with small holes to release small amounts of water to plant roots. Although this method is the most efficient since only about 5% or less of water is lost it is the most expensive
furrow irrigation	method where the farm digs trenches or furrows along the crop rows to be filled with water which seeps into ground to provide moisture to plant roots. Inexpensive but 1/3 of water is lost to evaporation or runoff.
flood irrigation	method that involves flooding the whole field with water. This can be achieved by diverting a stream or river by pumping water through a pipe. 20% of water is lost to evaporation and runoff. This can lead to waterlogged roots
spray irrigation	method involving pumping groundwater into spray nozzles over a field. More efficient than flood and furrow sine only 1/4 of water or less is lost to evaporation or runoff. Can also lead to water logging.

Created by: Lcoyle

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