Estuaries And Oceans Question Preview (ID: 44114)


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Wetlands control flooding by
a) allowing water to pass through it quickly
b) heating the water up to quicken evaporation
c) absorbing or soaking up the extra runoff
d) Having a large plant and animal population

Wetlands must be protected because
a) they decrease pollution by filtering water
b) they are a soggy soil wasteland
c) very few species of plants are found in wetlands
d) very few animals live in wetlands anymore

Why do large numbers of ocean life-forms live near areas of upwelling?
a) Upwelling keeps large predator fish away from the surface.
b) Upwelling helps push small fish up toward the surface.
c) Upwelling brings warm water to the surface.
d) Upwelling brings nutrients to the surface.

How is sonar used to map the surface of the ocean floor?
a) Light waves are used to take pictures of the ocean floor.
b) Various temperatures are measured to determine the depth of the ocean floor.
c) Scuba divers take videos and photographs to document their trips to the ocean floor.
d) Sound waves are emitted and bounced off the ocean floor to determine the distance from the receiver.

The organisms that live around hydrothermal vents are supported by
a) energy from sunlight.
b) nutrients washed from the land
c) food made by algae.
d) chemical nutrients from Earth’s interior.

The population density of marine life is greater along the shorelines of the ocean than farther out in the deep waters of the ocean. Which statement provides the best reason for th
a) Ocean currents prevent many smaller marine organisms from living in deep water.
b) The shallow waters have fewer predators.
c) Coastal waters are less polluted than the deeper waters of the ocean.
d) There are more nutrients in shallow waters.

Which of the following organisms could not live on the ocean floor of the oceanic zone?
a) fish
b) bacteria
c) algae
d) worms

What can you infer about an organism that lives in the rocky Intertidal zone?
a) They are able to withstand changes in tides.
b) They are able to withstand changes in salinity.
c) They are able to withstand changes in water temperature.
d) They are able to withstand changes in air temperature.

What is the basis of open ocean food webs and provides the majority of the world's oxygen supply?
a) zooplankton
b) ocean reefs
c) phytoplankton
d) sea turtles

How are estuaries connected to oceanic organisms?
a) Estuaries provide a nursery grounds for oceanic organisms.
b) Estuaries provide sunlight for oceanic organisms
c) Estuaries provide primary food for oceanic organisms.
d) Estuaries provide excess dissolved oxygen for oceanic organisms.

Which contains the greatest amount of earth's freshwater
a) glaciers and polar ice cap
b) oceans and seas
c) groundwater
d) lakes and rivers

Ridges, tectonic plate boundaries, and hydrothermal vents are physical features found on our planet. Where are these features found MOST OFTEN?
a) around the edges of deserts
b) at the bottom of Earth's oceans
c) on top of mountains on continents
d) in the middle of huge lakes

Tropical seas have a high rate of evaporation. Because of this, the water in tropical seas will have higher:
a) salt concentrations.
b) amounts of algae.
c) daily temperatures.
d) amount of sea water

Oceans contain many dissolved elements like calcium, sodium, and chlorine and these elements plus others combine to form the salts in the oceans. Which of the following sources do the salts come from?
a) weathering and erosion of rocks
b) acid rain caused by air pollution
c) pollutants from industrial wastes
d) gases from active volcanoes

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