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Chapter 13, Section 1- Margin Questions and Answers Flashcards | StudBud
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Chapter 13, Section 1- Margin Questions and Answers
Chapter 13, Section 1- Margin Questions and Answers
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Answers to questions in the margins for IT pages 229-235
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1
Where is the pressure greatest?
At the top of the ocean, or a lake or a pool.
At the bottom of the ocean, or a lake or a pool.
2
What divides the global ocean into five parts?
Waves.
The continents.
The condiments.
Currents.
3
The Gulf of Mexico is surrounded by land. Why is the water here less salty than in other areas?
The land blocks salt from traveling into the Gulf of Mexico.
Water from rivers and streams makes the water less salty.
There isn't much evaporation in the Gulf of Mexico.
Freshwater comes in through underground springs.
4
Where would salinity likely be lowest?
Where a hurricane is dropping a lot of rain into the ocean.
Near the equator on a dry day.
Near the North Pole when there is no precipitation.
At the bottom of the ocean.
5
Why have the shapes and locations of the oceans changed with time?
Oceanic inversions.
The continents have been moving. (Continental drift)
The oceans have less water now.
The oceans are deeper now.
6
What helps to distribute the heat in ocean water?
Fish.
Currents.
Sponges.
Wind.
7
What do we call the movement of water between the atmosphere, the ocean, and the land?
The nitrogen cycle.
A bicycle.
The water cycle.
A Harley-Davidson.
8
Why do oceans in hot, dry climates tend to have high salinity?
There are saltwater rivers in hot, dry climates.
There is a lot of salt in the soil nearby.
Because water evaporates quickly in hot, dry weather.
The heat causes the salt to be stronger.
9
Where did some of the gases that formed Earth's atmosphere come from?
A black hole.
Volcanic eruptions.
An asteroid.
Meteors.
10
Where is water most dense?
At the bottom of the ocean, or a lake or a pool.
At the top of the ocean, or a lake or a pool.
11
Where does most of the salt in the oceans come from?
Rain and precipitation.
The atmosphere.
Water that carries dissolved minerals from land by rivers.
The ocean floor.
12
Which two elements make up most of the dissolved solids in sea water?
Oxygen and hydrogen.
Flouride and potassium.
Calcium and magnesium.
Chlorine and Sodium.
13
How do the oceans affect air temperatures?
Oceans also make air temps cooler or warmer like the water.
The oceans make the air drier.
Oceans help keep air temps steady.
They don't since the air is aove the water.
14
What would happen to water temps in the surface zone if there weren't convection currents?
The water would start to boil.
Water near the surface would get warmer, deeper stays cool.
The deeper water would freeze first in winter.
Water near the surface would get cooler, deeper stays warm.
15
How does temperature change as you go deeper in the ocean?
Temperature increases. It gets warmer
Temperature decreases. It gets warmer.
Temperature increases. It gets colder.
Temperature decreases. It gets colder
16
True or False- Evaporation and freezing both can increase the salinity of ocean water.
True.Only water evaporates, salt doesn't. Same for freezing.
False.
17
How are salinity and density of water related?
Low salinity water has high density.
Water with high salinity has low density.
Water with high salinity has high density.
There is no relationship.
18
Where does most precipitation fall?
On Europe and Asia
On Africa.
In the Ocean.
On North and South America.
19
Why is surface water in the ocean warmer at the equator than at the poles?
Because it gets more sunlight and energy at the equator.
Because it gets more sunlight and energy at the poles.
Because of the wind.
Because it gets less sunlight and energy at the equator.
20
what are the five main oceans?
The Arctic, Atlantic, Indian, Pacific, and Antarctic Oceans.
The Arctic, Atlantic, Indian, Pacific, and Southern Oceans
The Antarctic, Atlantic, Indian, Pacific, & Southern Oceans
The Atlantic, Southern, Pacific, and & Arctic Oceans.
21
How does water movement affect salinity?
Fast moving water tends to have higher salinity.
Slow moving water tends to have higher salinity.
Fast moving water is hotter and saltier.
It has no impact.
22
Where is water coldest?
At the top of the ocean, or a lake or a pool.
At the bottom of the ocean, or a lake or a pool.
23
How does warm water mix with cool water in the surface zone?
Surface currents cause warm water and cool water to mix.
The warm water sinks due to its high density.
It doesn't, it just forms two layers.
The cold water rises due to its high density.
