NEW
Font size
WorksheetsHydrosphere: The Ocean
Total questions: 25
Worksheet time: 32mins
An example of an abiotic factor that would impact plankton could be:
predtors near by
water pH
other zooplankton
primary consumers
An example of a biotic factor that would impact plankton could be:
organic nutrients
water pH
Near by zooplankton
Current speed & direction
Which best explains what happens to nutrients in the ocean as a result of upwelling?
Upwelling carries nutrients to coral reefs.
Upwelling carries nutrients to the ocean bottom.
Upwelling carries nutrients to the intertidal zone.
Upwelling carries nutrients to the surface of the ocean.
How does upwelling in the ocean affect aquatic populations in the area?
The aquatic life populations begin to decrease.
The current produced by the upwelling forces the algae population to relocate.
The aquatic life populations move further out in the sea.
The nutrients rising to the surface cause an increase in aquatic life.
Which causes cold ocean water to rise during an upwelling event?
motion of organisms
deep water currents
mass of nutrients
surface winds
In which part of the ocean do the greatest number of organisms live?
in the deep zone to escape predators
near the shore to burrow in the sand
close to the surface to be near the largest food source
in the open ocean to regulate their bodies in cooler temperatures
Scientists have found strange new life-forms called “tube worms” on the deep ocean bottom. Which most likely provides energy for the tube worms?
algae
small fish
photosynthesis
hydrothermal vents
If a cool surface current flows along a coastline, what effect might it have on the climate in that area?
in general, it will bring cooler temperatures in the summer and colder temperatures in the winters
In general, it will bring warmer temperatures in the summer and milder temperatures in the winters
In general, it will bring cooler temperatures in the summer and milder temperatures in the winters
In general, it will have no long term effect on climate in that area
Which statement best describes how nutrients move in the ocean as a result of upwelling?
Nutrients move from estuaries into the intertidal zone.
Nutrients move from the neritic zone to the intertidal zone
Nutrients move from deep, colder areas to warm, shallow areas.
Nutrients move from warm, shallow areas to deep, colder areas.
Which process does NOT lead to a decrease in the salinity of water?
runoff from land
evaporation
sea ice melting
precipitation
Which best describes the source of oxygen in ocean water?
Oxygen is produced by marine plants in the process of making food.
Oxygen is produced through the exhalations of marine animals.
Oxygen is produced through precipitation falling on the ocean.
Oxygen is produced by nodules on the ocean floor.
Which factor is not involved in the creation of ocean currents?
The salinity of the seawater
The unequal heating of the earth
Ships traveling through the ocean
The rise and fall of ocean tides created by the moon.
Which are the most important dissolved gases in ocean water for marine life?
nitrogen and carbon dioxide
oxygen and carbon dioxide
oxygen and methane
nitrogen and sulfide
How does overharvesting of oysters impact the water quality of an estuary?
increase in pollution usually consumed by oysters
decrease in CO2 levels due to increase in pollution
increase in organic matter usually filtered by oysters
increase in CO2 levels due to less oysters
Which best explains why there is a greater concentration of oxygen located near the ocean’s surface?
Sunlight warms the ocean’s temperature and stimulates oxygen production near the surface.
Plankton produces excess amounts of nutrients that remove oxygen levels from the atmosphere.
Marine life gives off oxygen instead of carbon dioxide, which makes the ocean water rich in oxygen.
Plants, which release oxygen, live near the surface of the ocean, where they receive large amounts of sunlight.
Which best describes the relationship between salinity levels and the amount of dissolved gases in ocean water?
As salinity increases, the amount of dissolved gases increases.
As salinity increases, the amount of dissolved gases decreases.
As salinity decreases, the amount of dissolved gases decreases.
As salinity decreases, the amount of dissolved gases remains the same.
