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Ocean currents can affect climate. One major downwelling specifically responsible for keeping Europe warmer than it would otherwise be is known as ________________. |
North Atlantic Deep Water |
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When a water-bearing porous layer of rock, sand, or gravel is trapped between upper and lower layers of less permeable substances, it is _______. |
an aquifer |
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Which of these is characteristic of the photic zone of a freshwater biome? A.the presence of algae |
B.the presence of algae |
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The benthic zone of aquatic environments is defined as the _____. |
substrate at the bottom of the body of water |
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The _____ biome is the largest of Earth’s biomes. |
marine |
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A(n) _____ is a region where fresh water and salt water mix. |
estuary |
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What type of farming has led to the destruction of mangroves? |
shrimp farming |
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Why are coral considered mutualistically symbiotic organisms? |
Because coral reefs are a combination of an animal and an algae. |
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Which coastal habitat is a mixing place of fresh and saltwater? |
estuary |
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What is the direct cause of death for the aquatic animals during eutrophication? |
a loss of dissolved oxygen in the water |
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About how long have wastewater treatment plants been in existence? |
120 years |
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Which of the following diseases has been all but eliminated from the United States because of wastewater treatment plants? |
cholera |
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You accidentally flush your cell phone. Where will it most likely be found at a wastewater treatment facility? |
bar screen |
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Where does settling of solids occur at a wastewater treatment facility? |
clarifier |
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What does the Kanapaha Wastewater Treatment Facility use to disinfect the treated water? |
chlorine |
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Which of the following products of a wastewater treatment facility is often put on farm fields as a fertilizer? |
biosolids |
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What does the Murphree Water Treatment Plant use to disinfect the water? |
chlorine |
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What federal agency regulates the bottled water industry? |
Food and Drug Administration |
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Which of the following is considered to be the safest drinking water source? |
the groundwater |
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What is the next frontier in the drinking water industry? |
desalination |
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Once a groundwater supply is contaminated with marine water, how long will it remain contaminated? |
Forever. |
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What are the two types of aquifers? |
confined and unconfined |
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You want to maintain a healthy pond at your school site. Last year another pond became eutrophic; to avoid that, you want to ________. |
avoid increasing phosphorus runoff into the limnetic zone |
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Upwelling ________. |
brings benthic nutrients to the ocean surface promoting high primary productivity |
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Overpumping groundwater in coastal areas can cause ________ to move into aquifers, making the water undrinkable. |
salt water |
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Salt marshes are ________ ecosystems, while mangroves are ________. |
temperate intertidal; found on tropical shorelines |
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The rapid melting of Greenland’s ice cap could disrupt the NADW formation by ________. |
adding huge amounts of less dense fresh water to the surface of the system |
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Currently, the greatest ecological crisis facing marine food webs is ________. |
overharvesting |
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Sludge |
Composed of the organic sloids collected during the wastewater treatment process. |
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Landfill |
Where solids screened from raw sewage are typically diposed at |
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mirobes |
consume smal partilces of organic matter in aercation basins |
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Clarifying |
when wastewater sits in tanks, allowing solids to sink to the bottom and greaes and oils to rise o the surface |
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Chorine is used |
In the final step of the treatment process or ultraviolet light is used |
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