Marine Biology
Mr.Meier's Oceanography Test
Terms
undefined, object
copy deck
- what are the conditions of El Nino?
- It stops upwelling and brings warm water into an area that normally has cold water (bad for marine life, occurs every 5-7 years)
- where are the greatest effects of tides seen?
- shorelines
- what causes tides?
- the gravitational pull of the moon
- what does the background radiation explain?
- It is radiation left over from the big bang (nuclear explosion)
- what does the doppler effect explain?
- It shows that the universe is still expanding. It tells us if thinga re moving towards or away from us by light and sound.
- what is plate tectonics?
- the process by which continents drift on the surface of the earth
- average slinity of the ocean
- 35ppt
- what is the coriolis force?
- when winds and currents are deflected by the earths rotation (North hemisphere=right or clockwise, South hemisphere=left or counterclockwise)
- what were the gases of the first atmosphere?
- water, nitrogen, carbon dioxide, and methane
- At what temperature is fresh water the densest?
- four degrees Celsius
- what does the big bang theory explain?
- a nuclear explosion that changed energy into matter and created the universe.
- which tides occur with full and quarter moons?
- high tides
- what is subduction?
- the process where old crust is recycled.
- chemical reaction of organic compunds
- CH4+NH3+H2O+H2= organic compounds/amino acids (methane+ammonia+water+hydrogen)
- what color shifts is there in star spectrums?
- red has a longer wavelength than blue. It the universe is expanding there should be a red shift to the spectrum of stars
- how many spring and neap tides are there each month?
- two spring and two neap
- most common salt in seawater
- soduim chloride
- what were the first and second life on earth?
- bacteria, blue green algae
- What was Pangea?
- a super continent consisting of all the continents conected together
- What causes El Nino?
- A reverse of the normal Pacific gyre
- when did the big bang occur?
- about 14-15 billion years ago
- what is primordial soup?
- the early sea that was filled with organic compounds
- brackish
- lass salty than the average ocean
- what is a thermocline?
- the layer of rapid temperature drop that keeps water from mixing
- what was Gondwanaland?
- A landmass of all the southern continents
- refractometer
- measures amount of slinity in water
- how are spring and neap tides different?
- spring tide is when the sun,moon, and earth are in allignment. Neap tide is when the sun and moon are at right angles (90 degrees) with the earth
- which gas was not one of the gases in the first atmosphere?
- oxygen and ammonia
- Major Oceans of the world
- Pacific Atlantic Indian Arctic
- when did the earth form?
- about 4.6 billion years ago
- what end of the color spectrum penetrates the least?
- red
- what does subduction form?
- ocean trenches and volcanoes
- What is the average number of high and low tides each day?
- two high and two low
- what energy sourece formed organic compounds?
- lightning or ultrviolet radiation from the sun
- why do plates move on the earth?
- plates are chunks of rock floating on a semi-liquid mantle. spreading starts at the sea floor where the crust is the thinnest
- what end of the color spectrum penetrates the deepest?
- blue