Mining
The mining technique used for gold in river sediments
What is placer mining?
Pollution and toxic blooms decrease this
What is dissolved oxygen?
The biome where a major threat is the melting of permafrost
What is the arctic tundra?
The criteria pollutant that can result from old paint
The two indicators of population health
What are life expectancy and infant mortality?
What is subsurface mining?
This occurs when there is an excessive amount of nutrients and leads to algal blooms
What is eutrophication?
The aquatic biome that has very high biodiversity
What are coral reefs?
The pollutant that results from lightning as well as coal-burning stoves
What are nitrogen oxides?
The equation for doubling time
What is 70/percent change?
The worthless material that is found with the desired material
What is gangue?
The main use of freshwater
What is agriculture?
The biome that includes the photic, aphotic, and benthic zones
What is the open ocean?
The pollutant that is the main contributor of climate change
What is carbon dioxide?
The factors that effect this include education for women, access to birth control, and age of marriage
What is birth rate?
The technique used on mountainous terrain
What is contour strip mining?
The phase of a water treatment plan that includes screens
The biome where drought-tolerant shrubs and few trees can be found
What is a tropical grassland/savanna?
The pollutant that has the greatest global warming potential
What is methane?
The population control strategy that involves tax credits and subsidies
What are incentives?
The act that regulates the mining of coal and mandates reclamation of land
What is the surface mining control and reclamation act?
The act that regulates waste from point sources but does not cover groundwater or quality related issues
What is the clean water act?
What are intertidal zones?
The protocol that aimed to phase out CFCs
What is the Montreal Protocol?
The phase where there is a low CBR and CDR and a stabilizing or declining population
What is phase 4?