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