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Oceans
Oceans
20 terms
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Science Quiz to review the oceans and their composition
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Measure of concentration of dissolved solids, such as salt, in water
freshy saltiness
salinity
brackish
temperature
2
Which ocean is the largest?
Pacific
Atlantic
Arctic
Southern
3
Earth's oceans may have come from the condensation of water vapor thrown into the atmosphere by
Tides
Volcanoes
Upwelling
Ancient moon rocks
4
What is seawater
Water with an average salinity of 35 ppt
Water of the five oceans
brackish water
Water in the ocean
5
97%
The percentage of water that is fresh water on Earth
The percentage of Earth's surface that is water
The salinity of the Indian Ocean
The percentage of Earth's water that is salt water
6
Which ocean layer supports most organisms that perform photosynthesis?
Deep zone
Surface zone
Phototropic zone
Middle zone
7
How does salinity affect density
As salinity increases density decreases
There is no relationship between the two
As salinity decreases density increases
As salinity increases density increases
8
How much of the Earth's surface is covered by land?
15%
70%
75%
30%
9
How much of Earth's surface is covered by water?
70%
50%
85%
30%
10
Only blue-green light penetrates to this zone
Surface Zone
Middle Zone
Deep Zone
Midnight Zone
11
Mountain ranges under the ocean
Continental shelfs
Abyssal plains
Mid-Ocean Ridges
Trenches
12
Which of the oceans shown on the map is located in a very cold climate
Indian Ocean
Pacific Ocean
Southern Ocean
Atlantic Ocean
13
One theory states Earth's oceans may have come from
Comets and asteroids
Mars
Ancient moon rocks
Meteors
14
From the diagram, which under sea feature extends across most of the ocean floor?
Continental Shelf
Mid-Ocean Ridges
Abyssal Plain
Continental Rise
15
Plants cannot grow in this ocean zone
Tropical Zone
Middle zone
Deep zone
Surface zone
16
Where would you find brackish water?
In lakes where salt water mixes with muddy water
In the deep zone of tropical oceans
In tropical regions
In river mouths where fresh water and seawater mix
17
The salt in the oceans came from
condensation
salts dissolved by water flowing over ancient rocks
ancient moon rocks
volcanoes
18
The main factor scientists use to distinquish between ocean zones is
Light
Density
Temperature
Salinity
19
In which ocean zone do organisms that conduct photosynthesis live?
twilight zone
Surface Zone
Middle Zone
Deep zone
20
Bioluminescent creatures live in the
Deep Zone
Twilight zone
Middle Zone
Surface Zone
