The Living World: Ecosystems
Which zone of a freshwater lake is characterized by well-lit, warm surface waters where photosynthesis can occur?
Hypolimnion
Benthic zone
Abyssal zone
Epilimnion
How does an oil spill primarily affect marine birds and mammals?
INCREASED FISH PREY AVAILABILITY DUE TO DISRUPTED FOOD CHAINS.
Diminished reproductive success over several generations after exposure.
Insulation loss and buoyancy reduction due to oil-coated feathers or fur.
Food poisoning from consuming contaminated prey items directly after the spill event.
What human activity is most directly responsible for the process known as eutrophication in aquatic systems?
Installation of offshore wind farms.
Commercial whaling practices.
Deep-sea mining operations.
Runoff from agricultural fields.
Which strategy would most likely lead to nutrient pollution reduction in aquatic biomes?
Implementing riparian buffer zones
Expanding urban wetlands
Introducing non-native plant species
Constructing hydroelectric dams
Which term describes the area where a freshwater stream or river merges with the ocean?
Wetland
Bayou
Estuary
Lagoon
What type of aquatic biome is characterized by standing fresh water with little to no current?
Lakes
Estuaries
Rivers
Oceans
Which global policy has most significantly impacted the conservation of marine biodiversity through the regulation of international waters?
Paris Agreement
Kyoto Protocol
United Nations Convention on the Law of the Sea (UNCLOS)
Montreal Protocol

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What type of aquatic biome would you most likely find at the mouth of a river where it meets the sea?
Tide pool
Open ocean
Freshwater wetland
Estuary
After implementing a stringent regulatory cap on commercial fishing quotas within its exclusive economic zone, what is a likely consequence an island nation may observe in its coral reef systems?
INCRRRCRERECT
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Increased fish diversity due to reduced overfishing pressures allowing populations to recover.
INCORRECTT
What is the primary characteristic that distinguishes a wetland from other aquatic biomes?
It is characterized by fast-moving water.
It contains coral reefs.
It has high salinity levels.
The soil is saturated with water.
