Read the following scenario and answer the questions below.
The formation of sinkholes has become a fairly common phenomenon in the state of Florida. Most sinkholes are small, but some sinkholes have led to catastrophic property damage and loss of life. One September day in 1999, folks began to notice that Lake Jackson in the panhandle region was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of the fish and alligators. Another sinkhole formed just 10 miles from Walt Disney World in August 2013, swallowing a 48- unit villa at Summer Bay Resort.
As aquifers lose water, their substrates can become weaker and less capable of supporting overlying strata and any human structures built upon them. In such cases, the land surface above may subside. Sometimes subsidence can occur locally and suddenly, in the form of sinkholes, areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult.
-Why was the irrigation of Soviet cotton farming operations a problem?
A) There was governmental opposition that limited water access, killing crops.
B) Irrigation water came from rivers feeding into one of the largest lakes on Earth and resulted in major contamination of that source.
C) It was, for the most part, not a problem.
D) It angered local resort communities, which did not want farming in the region.
E) It drained the Aral Sea and increased the salt content of soils.
Correct Answer:
Verified
Q2: Choose the item that best matches each
Q21: Read the following scenario and answer the
Q22: A measure of the density of suspended
Q23: Artificial wetlands .
A)can help purify water and
Q25: A porous, spongelike layer of rock, sand,
Q27: Which of the following is one of
Q28: Which of the following will contribute to
Q29: A key characteristic of aquatic dead zones
Q30: Recent research that analyzed the content of
Q31: We build dams to .
A)drain wetlands for
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