Exam 12: Geology and Nonrenewable Minerals

The 500,000 surface-mined sites that dot the U.S.landscape are usually cleaned up and restored because it is required by law.

What is the best way for governments to support more sustainable use of nonrenewable mineral resources?​

Earthquakes and volcanoes are largely related to the position of ____________________ as they separate,collide,and slide past one another.

The slowest natural cycle on and in Earth is the ____________________ cycle.

What toxic chemical do miners in poverty stricken countries use for mining gold?​

A process in the rock cycle that results in the breaking down of rocks into smaller particles can be described as ____________________.

A(n)____________________ forms when a preexisting rock is subjected to high temperatures,high pressures,chemically active fluids,or a combination of these agents.

Important nonrenewable mineral resources are evenly distributed in Earth's crust.

Reserves can be increased when higher prices make it profitable to mine deposits that previously were too expensive.

What are the chimney-like structures near the hot water vents that come into contact with cold seawater and precipitate out various metal sulfides?​

Volcanoes are normally associated with transform faults.

Match each rock with its type. -sandstone​

The U.S.dependence on foreign sources of ____ could be lessened by a new process that extracts the valuable material from the brine waste of geothermal plants.​

Thus far,the biologic mining method called ____________________ is economically feasible only with low-grade ores for which conventional mining methods are too expensive.

China dominates the world in the complex,lengthy,and environmentally harmful chemical process of converting rare earth minerals into individual metals and oxides.

Slate and marble are types of sedimentary rock.

When there is a dispute about ____,it is often because of different assumptions about supplies and rates of use.​

What part of the mantle is the volume of hot,partly melted rock that flows?​

Match the items listed below with the appropriate description.​ Figure 12.3 ​ -​On the figure of the earth's crust,choose the letter that represents cold dense materials falling through the mantle.

Magnitude is the measure of ground motion or tremors caused by an earthquake,as indicated by the ____________________ of seismic waves.