Oceanography Ch. 1 Test
At the border between the Atlantic and Pacific Ocean, the Atlantic....?
sinks
Seas are...?
smaller than oceans and surrounded by land
a hypothesis is?
testable statement
Winter in Washington State is not as cold as winter in Indiana because...?
the ocean has a high specific heat
Continental crust is...?
thicker, less dense, and made of granite
Oceanic crust is...?
thinner, more dense, and made of basalt
The saltiest and densest ocean is the?
Atlantic Ocean
Transpiration happens where?
Between plants and the sky
Stanley Miller Experiment showed that life could have started with just what?
CO2, water vapor, hydrogen and methane
Hydrothermal vent bacteria get their energy from?
Chemosynthesis
Oceanic crust is primarily: a. carbonate sedimentary rocks. b. siltstone. c. granite. d. clay minerals. e. basalt.
E
T/F: Any solution with a pH of greater than 7.0 is acidic
False
T/F: Heterotrophic organisms manufacture their own food using sunlight energy
False
T/F: The mantle could not have produced enough water to fill the oceans
False
Ocean salinity is measured in?
PPT (parts per thousand)
Was Protoearth or Present Earth bigger?
Protoearth
T/F: As a whole, the pH of the ocean is slightly alkaline
True
T/F: Carbon dating is used to determine the absolute age of a rock or fossil
True
T/F: The Earth formed 4.6 billion years ago
True
T/F: Hydrothermal vents have a significant impact on ocean chemistry.
True?
A nebula is a...?
cloud of gas and dust
order of layers?
crust, mantle (lithosphere, asthenosphere, mesosphere), outer core, inner core
Earth's layers are formed by..?
density stratification
Increased salinity equals...
increased density
Which is bigger? a. the average depth of the ocean b. the percentage of water that is fresh c. the height of the continents d. the percent of the ocean that has been explored
A
The temperature and salinity of an ecosystem are _________ factors.
abiotic (nonliving)
Radioactive isotopes determine?
absolute age
Did the heterotroph or autotroph come first?
heterotroph
a theory is a?
well-tested explanation
