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Estuaries And Oceans
Test Description: Estuaries and oceans
Instructions: Answer all questions to get your test result.
1) Wetlands control flooding by
A
allowing water to pass through it quickly
B
absorbing or soaking up the extra runoff
C
Having a large plant and animal population
D
heating the water up to quicken evaporation
2) Wetlands must be protected because
A
very few animals live in wetlands anymore
B
they decrease pollution by filtering water
C
very few species of plants are found in wetlands
D
they are a soggy soil wasteland
3) 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 brings nutrients to the surface.
C
Upwelling helps push small fish up toward the surface.
D
Upwelling brings warm water to the surface.
4) How is sonar used to map the surface of the ocean floor?
A
Sound waves are emitted and bounced off the ocean floor to determine the distance from the receiver.
B
Light waves are used to take pictures of the ocean floor.
C
Scuba divers take videos and photographs to document their trips to the ocean floor.
D
Various temperatures are measured to determine the depth of the ocean floor.
5) The organisms that live around hydrothermal vents are supported by
A
energy from sunlight.
B
food made by algae.
C
chemical nutrients from Earth’s interior.
D
nutrients washed from the land
6) 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
Coastal waters are less polluted than the deeper waters of the ocean.
B
Ocean currents prevent many smaller marine organisms from living in deep water.
C
There are more nutrients in shallow waters.
D
The shallow waters have fewer predators.
7) Which of the following organisms could not live on the ocean floor of the oceanic zone?
A
worms
B
bacteria
C
fish
D
algae
8) What can you infer about an organism that lives in the rocky Intertidal zone?
A
They are able to withstand changes in water temperature.
B
They are able to withstand changes in tides.
C
They are able to withstand changes in air temperature.
D
They are able to withstand changes in salinity.
9) What is the basis of open ocean food webs and provides the majority of the world's oxygen supply?
A
sea turtles
B
ocean reefs
C
phytoplankton
D
zooplankton
10) How are estuaries connected to oceanic organisms?
A
Estuaries provide a nursery grounds for oceanic organisms.
B
Estuaries provide excess dissolved oxygen for oceanic organisms.
C
Estuaries provide primary food for oceanic organisms.
D
Estuaries provide sunlight for oceanic organisms
11) Which contains the greatest amount of earth's freshwater
A
glaciers and polar ice cap
B
lakes and rivers
C
oceans and seas
D
groundwater
12) 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
in the middle of huge lakes
C
on top of mountains on continents
D
at the bottom of Earth's oceans
13) 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
amount of sea water
D
daily temperatures.
14) 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
gases from active volcanoes
D
pollutants from industrial wastes
*select an answer for all questions
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