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WorksheetsHydrosphere Vocab 2
Total questions: 18
Worksheet time: 14mins
The part of the ocean that extends from the low-tide line to the edge of the continental shelf. (where most fish live)
Nertic Zone
Oceanic Zone
Intertidal Zone
Abyssal Zone
Which of these is not a body of freshwater?
stream
lake
river
estuary
Which is the correct statement regarding estuary?
It supplies freshwater to lakes.
It prevents saltwater from entering a river.
It supplies all of the minerals that make ocean water salty.
It acts as a filtering system to remove some pollutants from water runoff.
An area of land that drains into a river or lake is called
an ecosystem
a wetland
a watershed
a habitat
Which best explains why estuaries are an important habitat for many marine organisms in comparison to the open ocean?
There is less food in estuaries.
There are more predators in estuaries.
There is more salt available in estuaries.
There are more nutrients available in estuaries.
How does over-harvesting of oysters impact the water quality of an estuary?
increase in pollution usually filtered by oysters
decrease in CO2 levels due to increase in pollution
decrease in organic matter usually filtered by oysters
Which best explains how estuaries support plant and animal life?
The dry land removes pollutants.
The water provides energy for growth.
The habitat areas provide nutrients and shelter.
The cold temperatures decrease dissolved oxygen.
Which would be the impact on the environment if there were no estuaries?
There would be a drought.
There would be more pollutants in the oceans.
There would be a decreased concentration of salt in the oceans.
There would be less boating, fishing, and swimming in local rivers.
Which characteristic of an estuary makes it a good nursery area for marine organisms?
It is located at the mouth of a river.
It has a mix of salt and fresh water.
It has many areas to hide from predators.
It has the ability to absorb water and prevent flooding.
Which best explains why estuaries are productive ecosystems?
They have high saltwater content.
They have high levels of dissolved gases.
They receive nutrients from both rivers and the ocean.
They receive chemicals from commercial and industrial runoff.
