Chapter #24 - Earth Resources

There are major problems associated with the use of coal as a source of energy. They include (a.) the rarity of coal reserves in the United States. (b.) the difficulty with which it is converted into electricity. (c.) radioactivity of the ore and emission of radon. (d.) acid rain and open-pit mines.

(d.) acid rain and open-pit mines.

Problems with the use of nuclear fuels as an energy source include (a.) smog-creating air pollution. (b.) the accumulation of radioactive radon in homes. (c.) the high cost of uranium ore. (d.) the disposal of the spent but still radioactive fuel. (e.) acid rain and open-pit mines.

(d.) the disposal of the spent but still radioactive fuel.

Petroleum is commonly trapped in (a.) stratigraphic traps (b.) fault traps (c.) anticlines (d.) unconformity traps (e.) all of the above

(e.) all of the above

Which coal contains the most carbon per volume? (a.) anthracite (b.) bituminous (c.) lignite (d.) peat

(a.) anthracite

According to recent studies the major factor in limiting population and industrial growth will be (a.) consumption of resources (b.) industrial output (c.) food production (d.) birth rate (e.) pollution

(a.) consumption of resources

Most of the hydrocarbons within oil and natural gas are derived from the breakdown of organic matter from once-living _____. (a.) dinosaurs (b.) plankton (c.) terrestrial plants (d.) mammals

(b.) plankton

U-235, the isotope of uranium commonly utilized in nuclear power plants, is _____. (a.) the most common of the naturally occurring isotopes of that element (b.) heavier than the other well-known isotope of uranium (c.) rare even in uranium oxide deposits, and thus usable reactor fuel must be enriched with respect to this isotope

(c.) rare even in uranium oxide deposits, and thus usable reactor fuel must be enriched with respect to this isotope

The high electrical conductivity associated with metallic bonds results from _____. (a.) their radioactive instability (b.) the ability of nuclei to be discharged into the atmosphere (c.) the ability of outer electrons to move freely from atom to atom (d.) their relatively great atomic mass

(c.) the ability of outer electrons to move freely from atom to atom

An example of harnessing geothermal energy is (a.) direct heat flow from the Earth (b.) directly tapping the lava from volcanoes (c.) using geothermally heated groundwater (d.) directly tapping a magma (e.) all of the above

(c.) using geothermally heated groundwater

Which mineral resources are considered renewable? (a.) base metals only (b.) nonmetallic minerals only (c.) iron and aluminum ores (d.) No mineral resources are renewable.

(d.) No mineral resources are renewable.