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Oceans
Test Description: Ocean water and life
Instructions: Answer all questions to get your test result.
1) What is the amount of dissolved substances in water?
A
salt
B
salinity
C
chemical weathering
D
temperature
2) Where do ocean salts come from?
A
run off from land
B
both a and b
C
chemical weathering
D
earth's interior
3) What is a thermocline?
A
change of density with depth
B
change of temperature with depth
C
change of sunlight
D
change of salinity
4) How do plankton move?
A
Walk
B
Swim
C
Crawl
D
Float
5) What is photosynthesis?
A
use of energy to make food
B
something that plants do
C
use of chemicals to make food
D
use of light to make food
6) What is a tropic level?
A
part of a food web
B
what the arrow points to
C
part of a food chain
D
a feeding stage
7) What is a food chain?
A
a sequences of organisms that transfer energy
B
a source of food and energy
C
an interconnected or interrelated food thingy
D
somethings all animals do
8) How are marine organisms classified?
A
how they move
B
where they live
C
what they eat
D
both 3 and 4
9) What is a pycnocline?
A
change of density with depth
B
change of temperature with depth
C
change of salinity
D
change of sunlight
10) Name the 3 ocean layers
A
mixed, transition, deep
B
mixed, surface, deep
C
oceanic, transition, mixed
D
intertidal, oceanic, photic
*select an answer for all questions
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