Exam 12: Environmental Geology and Earth Resources

Rock formed from magma extruded to the surface through volcanic vents is classified as

Coal would be obtained through

________ in the mantle and core make tectonic plates move.

Use the following scenario in answering the question. After reading a newspaper article about gold mining prospects near your home town, your sister commented that it seems as though miners are going after ores with less and less concentrations of the gold. She mentions the rich gold veins and nuggets that she reads about in historical accounts of gold mining and wonders what factors have lead to the change. She tells you that she knows that the days of gold nuggets in the streams are gone, but that she can't believe how small the percentage of gold is in the ore they are now mining. First, you tell your sister that she sounds like your father, commenting on the good old days. Then you explain to her that there are many factors driving the changes and that there are important environmental implications of the mining. -Which of the following factors were not in your explanation?

Which resource has the highest recycling rate?

Use the following scenario in answering the question. After reading a newspaper article about gold mining prospects near your home town, your sister commented that it seems as though miners are going after ores with less and less concentrations of the gold. She mentions the rich gold veins and nuggets that she reads about in historical accounts of gold mining and wonders what factors have lead to the change. She tells you that she knows that the days of gold nuggets in the streams are gone, but that she can't believe how small the percentage of gold is in the ore they are now mining. First, you tell your sister that she sounds like your father, commenting on the good old days. Then you explain to her that there are many factors driving the changes and that there are important environmental implications of the mining. -Heap-leach extraction involves piling crushed ore into large piles and spraying it with ________________.

Which environmental impact would not be a result of placer mining?

Why would the environmental degradation associated with mining be a low priority for a less-developed country?

One of the largest earthquakes ever recorded in North America occurred around New Madrid Missouri in 1812.

The eruption of a volcano can cause global climate changes by causing stratospheric ozone reduction, allowing increased ultraviolet light to reach the Earth's surface.

Which of the following statements regarding tectonic plate movement is true?

Pressurized fluid injected into a well is used in a mining process called

The United States keeps large stockpiles of bauxite to ensure a supply of aluminum. This is an example of