Exam 12: Environmental Geology and Earth Resources

If metals are deposited in streambeds _____ would probably be used.

"Subduction" is the process of a tectonic plate

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. -The need for extraction of raw metals for making steel has been reduced due to the

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. -What gas is released in the process of smelting?

Evaporites, formed from ___________, are important economically because they are often found at or above 97% purity and are __________.

__________ rocks are often the source of metal ores such as gold, silver, and copper.

Rocks are _______ in the process called the rock cycle.

The "ring of fire" is the source of more earthquakes and volcanic activity than any other place on earth. What causes the ring of fire?

Metamorphic rocks are produced when rocks are

Which of the following would you not use to classify a rock you found on a recent hike?

Which is not a major category of economic minerals?

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. -A major environmental implication of the quest for more gold at lower concentrations in the ore compared to higher concentrations is that

Nuees ardentes are sonic waves associated with earthquakes.

The physical breakdown of a rock into smaller pieces is called

Smelting releases metals from ore.

Building and farming on a flood plain decreases the land's ability to absorb flood waters.

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. -A giant sea swell known as a tsunami is caused by

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. -The most abundant element in the Earth's crust is _________.

Problems associated with gemstones and precious metals such as gold and diamonds would not be attributed to which of the following?

The continental crust of the earth is _____________ while the oceanic crust is _____________.