1. You are
testing the groundwater quality of an aquifer and find that it has high amounts
of arsenic. What is the likely source?
arsenic comes from the reaction of the water with your testing supplies.
arsenic is not actually there; it does not show up in groundwater.
arsenic is being poured into the groundwater to poison the town.
arsenic comes from the dissolved minerals in the aquifer rock.
1. You have
a choice to drill your water well into a more shallow unconfined aquifer or a
deeper artesian aquifer. Drilling deeper will cost more money, however you
chose to drill into the artesian aquifer. Why?
artesian aquifer will contain more water for your use.
artesian aquifer will not be subject to overpumping.
artesian aquifer will have a higher permeability.
artesian aquifer will flow on its own, without a pump.
layer of the atmosphere is chemically stratified, with the lightest molecules
riding above heavier molecules?
1. In global
convective circulation, air sinks at the ________ and the ________.
latitudes; polar fronts
from the equator and moving toward either pole, how many rows of global
convection cells are present within the troposphere?
Enhanced Fujita scale, which is used to rate tornado intensity, is based on the
of the track on the ground
d. width of
precipitation begins, a thunderstorm has reached the ________ stage.
moisture-laden wind is forced over a mountain range, clouds will form because
of ________ lifting.
1. A rock
that has been significantly reshaped on multiple surfaces by windborne
particles and sometimes has a sharp edge is a(n) ________.
1. Which of
the following is NOT an adaptation of plants that helps them survive in
seeds that can quickly germinate when it rains
expansive root systems that can uptake infiltrated water over a broad area
c. a thick
waxy outer coating and needlelike leaves
(tissues that retain moisture for a long period of time)
extensive erosion of a hill in a desert environment, the small remnant
surrounded by alluvium-filled basins is known as a(n) ________.
Americans produced petroglyphs by etching into ________.
that had been coated with desert varnish
that had been subjected to case hardening
1. At 30°
north latitude, at the northern edge of tropical (Hadley) cell convection in
the northern hemisphere, ________.
a. warm, dry
air rises, becoming cooler
b. cool, dry
air sinks, becoming drier as it heats up
moist air rises, increasing in relative humidity as it rises
moist air sinks, providing abundant rainfall
of productive land to desert is known as ________.
bowl-shaped depression formed by a mountain glacier is termed a(n) ________.
ice cores can be used to determine the atmospheric concentration of CO2 during
Earth’s history. How do scientists come up with these data?
record changes in the shape of ice crystals to determine the paleoclimate.
b. The melt
the ice and measure how much carbon was trapped in the ice.
c. They use
the thickness of the ice layers to determine how much CO2 was in the
break the ice apart, release the air trapped in bubbles, and then measure the
1. A glacier
will always advance from its source area if the rate of accumulation is greater
than the rate of ________.
1. A hanging
valley is formed when a ________.
glacially carved valley intersects with a larger glacially carved valley
stream-cut valley intersects with a larger stream-cut valley
valley is on the upthrust side of a normal fault
stream-cut valley intersects with a larger glacially carved valley
continental glaciers are limited to Antarctica and ________.
1. You are
hiking in Illinois and notice several ringlike hills composed of till. You
climb to the top of one, look toward the south, and see several more hills in
the distance. In which direction did the glacier advance?
form as fresh ________ falls to the ground and accumulates. The accumulation
adds pressure, which compresses the ________ until they form a packed granular
material called ________. Some material melts and then ________ in the pore
spaces to create a solid mass of ice.
glacier; ice; gets trapped
snowflakes; cirques; dissolves
snowflakes; firn; refreezes
d. ice; ice;