Water And Oceans Question Preview (ID: 41389)
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Where is new ocean floor formed?
a) at ocean trenches
b) hydrothermal vents
c) mid-ocean ridges
d) on continental shelves
When does the GREATEST tidal ranges occur?
a) spring tides
b) neap tides
c) high tides
d) low tides
Spring and Neap tides occur in patterns governed by
a) changes in the force of the Earth's gravity
b) the type of ocean currents near where the tides occur
c) whether the gravity of the sun or moon exerts a stronger pull
d) the relative positions of the Earth, moon, and sun (phases of the moon)
Tides alternate between _?_ and _?_ about every 6 hours on a daily basis.
a) high and low
b) far and wide
c) north and south
d) east and west
How do warm-water currents affect the coastal areas along which they flow?
a) they create greater rainfall along the coast
b) they create cooler climates for the latitude
c) they create warmer climates for the latitude
d) they make the coastal climates cooler than the inland climates
Compared to surface currents, deep currents are
a) colder and less dense
b) warmer and less dense
c) warmer and more dense
d) colder and more dense
Surface currents are caused by
a) wind
b) density
c) temperature
d) salinity
The curved path of surface currents and global winds are caused by
a) the rotation of Earth
b) warm air near the equator
c) continental deflection
d) convection currents
Waves carry _?_ transferred from the _?_ blowing across the ocena.
a) energy, heat
b) energy, hurricanes
c) heat, wind
d) energy, wind
The amount of dissolved salts in ocean water is called
a) salinity
b) seamounts
c) sulfur
d) sodium
Besides hydrogen and oxygen, the two most abundant elements in ocean water are
a) sodium and nitrogen
b) sodium and chlorine
c) sulfur and chlorine
d) nitrogen and sulfur
Water on Earth is found naturally as a solid, liquid, and gas. Where is MOST if the solid water on Earth?
a) In Earth's polar regions
b) at the bottom of the ocean
c) deep inside the Earth
d) in the outer atmosphere
What are mid-ocean ridges?
a) areas of underwater mountain chains where new ocean floor is created
b) areas where tectonic plates meet
c) narrow vallesy that run along the bottom of the oceans
d) areas underwater where thick layers of sediment have accumulated
At which ocean feature would the greatest amount of water pressure be exerted?
a) continental slope
b) abyssal plain
c) trench
d) mid-ocean ridge
The chemical name for common table salt is
a) sodium nitride
b) sodium chloride
c) sulfur nitrate
d) sulfur chlorate
Of the ocean features listed below, which would be in the correct order?
a) continental shelf, abyssal plain continental slope, mid-ocean ridge
b) continental slope, continental shelf, abyssal plain, mid-ocean ridge
c) continental shelf, continental slope, abyssal plain, mid-ocean ridge
d) coastal shore, continental slope, continental shelf, abyssal plain
How is ocean water different from freshwater?
a) it has a higher temperature
b) it has a lower temperature
c) higher amount of sodium chloride
d) higher amount of silver nitrate
Where does most of the water in the atmosphere come from?
a) lakes
b) rivers
c) oceans
d) glaciers
About 99.7% of all water on Earth is in the oceans. What percentage is available for us to use?
a) 30%
b) 3%
c) 0.3%
d) 0.03%
About how much of Earth's surface is covered in water?
a) 30%
b) 50%
c) 70%
d) 90%
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