Unit C
Unit C
100
What is open pit mining?
Open pit mining involves the removal of all materials in a large pit
100
What is sewage?
Sewage is the liquid waste water from toilets, baths, showers, and sinks.
200
What is strip mining?
Strip mining involves the removal of long strips of overburden in areas where material being mined is concentrated in veins
200
What is primary treatment?
Primary treatement involves separation of mechanical mixtures
300
What is mountaintop removal?
The mountaintop removal process starts wigth clear cutting and removal of the mountaintop forest
300
What I secondary treatement?
Secondary treatement is a biological process
400
What are tailing ponds?
Tailing ponds are large pools where the cyanide compounds (mixed in with crushed rock) break down in the sunlight
500
What is glass flaring?
Waste gases produce by the refining process, such as methane or natural gas, are releases and sometimes set aflame in a process known as gas flaring
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