Advertisement Upgrade to remove ads

Waves begin to "feel bottom" when the depth of water is ________.

equal to half the wavelength

Which of the following is designed to reduce shoreline erosion?

all of these

The movement of water within the surf zone that parallels the shore is termed

longshore current

Density in seawater is determined by ________.

both temperature and salinity

Tidal flats are submerged during ebb tide.
Answer

False

Groins are constructed for the purpose of maintaining or widening beaches that are losing sand.

True

A rapid change in temperature with depth in the ocean is called the ________.

thermocline

When the tide rises, water flows in toward the shore as the ebb tide.

False

The proportion of dissolved substances in seawater is expressed as 0/00, which is the same as ________.

parts per thousand

Because of the Coriolis effect, surface ocean currents are deflected to the ________ of their path of motion in the Southern Hemisphere.

wrong answer

Salinity in the ocean is highest in regions where ________ is high and ________ is low.

evaporation; precipitation

Thermoclines in the ocean are best developed at ________.

lower latitudes

The density of seawater is controlled by temperature and salinity.

True

Large estuaries are more common on a(n) ________ coastline.

submergent

The rapid change in temperature with depth in the ocean is called the pycnocline.

False

The most abundant salt in seawater is ________.

NaCl

Desalination is currently our most productive and efficient source of fresh water.

False

Which one of the following structures is built to protect boats from large breaking waves?

breakwater

Although the Sun influences the tides, its effect is considerably less than the effect of the Moon.

True

The movement of sand parallel to the shore ________.

all of the above

Which one of the gases listed below is more important in weather processes than the others?

carbon dioxide

Fifty percent of the gases making up the atmosphere are found below ________.

3 ½ miles (5.6 km)

Tiny solid and liquid particles suspended in the atmosphere are collectively called aerosols.

True

On average, for every 1 kilometer increase in altitude in the troposphere, the air temperature ________.

drops about 6.5˚C

If the maximum temperature for a particular day is 26˚C and the minimum temperature is 14˚C, the daily range would be ________.

12˚C

Two cities are located at the same latitude (40˚). City A is in the Northern Hemisphere and City B is in the Southern Hemisphere. Assume the two cities reflect the general characteristics of the hemispheres where they are located. Which city should have the largest annual mean temperature range?

City A

The triatomic form of oxygen (O3) is known as ________.

ozone

The storage of heat in the lower layer of the atmosphere produced by certain heat absorbing gases is called the ________.

greenhouse effect

Ozone filters out most of the ________ radiation in sunlight.

ultraviolet

The fall equinox in the Southern Hemisphere occurs on this date.

March 21

Which one of the following is the most abundant gas in the atmosphere?

nitrogen

The 90˚ angle solar rays are striking the Tropic of Capricorn on ________.

December 21

Twenty percent of incoming solar radiation is absorbed by the land and sea; fifty percent is absorbed by the atmosphere and clouds.

False

A coastal location where prevailing winds blow from the ocean onto the shore will probably have ________.

cooler summer temperatures than an inland location at the same latitude

Air may best be described as ________.

a mixture

This process of heat transfer involves the movement of a mass or substance.

all of these

With which of the following is dust in the atmosphere associated?

all of these

90˚ angle solar rays are striking 23.5 degrees North latitude (the Tropic of Cancer) on ________.

the June Solstice

Relative humidity is usually expressed as a percent.

True

The capacity of air to "hold" water vapor is temperature dependent.

True

When warm moist air moves over a cold surface, ________ fog may result.

advection

The term ________ is used to describe the conversion of a solid directly to a gas, without
passing through the liquid state.

sublimation

The Great Basin Desert of the western United States is a good example of a ________.

subtropical desert

The dew point is the temperature at which ________.

water vapor condenses to a liquid

A parcel of air has a temperature of 0°C at an elevation of 3000 meters as it crosses a mountain range. If it descends, what will its temperature be when it reaches sea level?

30°C

When air rises, it expands and cools adiabatically.

True

When supercooled raindrops freeze on contact with solid objects, ________ forms.

glaze

This fog results from adiabatic cooling.

upslope

If the temperature drops and the amount of moisture in the air remains unchanged, the
relative humidity will increase.

True

The highest relative humidity during a particular day usually occurs just before sunrise.

True

Clouds form because rising air cools as it comes in contact with colder air aloft.

False

This cloud may develop an "anvil head."

cumulonimbus

Thunder and lightning are associated with these clouds.

cumulonimbus

When air is cooled to its dew point, the relative humidity is 100%.

True

This term is used to describe clouds found in the middle height range.

alto

This process results in the release of about 600 calories of latent heat per gram of water.

condensation

Please answer the following questions using the data below:
H2O vapor content: 14 grams
Saturation mixing ratio:
20 grams at 25 degrees Celsius
14 grams at 20°C
10 grams at 15°C

What is the dew point for the conditions listed above?

20°C

High clouds that form delicate veil-like patches or extended wispy fibers are termed
________.

cirrus

The Coriolis effect influences ________.

only wind direction

The Coriolis effect is strongest at the equator and diminishes in strength poleward.

False

Low pressure systems are usually associated with clear weather.

False

The subpolar low (polar front) is ________.

a zone where the polar easterlies and the westerlies converge

Which of these instruments is NOT used to measure air pressure?

anemometer

Cyclones are usually associated with stormy weather.

True

High pressure systems are usually associated with stormy weather.

False

Low air pressure systems are usually associated with ________.

precipitation

In the Southern Hemisphere, the winds associated with a low pressure system blow ________.

clockwise and toward the center

The Sahara and Australian deserts (among others) are associated with the ________.

subtropical high

In the Northern Hemisphere, the winds associated with a low pressure system (cyclone) blow ________.

counterclockwise and toward the center

If "fair" weather were approaching, the pressure tendency would probably be ________.

rising

If the barometer indicated 1020 millibars, air pressure would be considered high.

True

Which of these factors influence the magnitude of the Coriolis Effect?

both wind speed and latitude

Closely spaced isobars often indicate ________.

high winds

In the Northern Hemisphere, winds blow clockwise and outward from the center of anticyclones.

True

Most of the United States is situated in which zone of prevailing winds?

westerlies

Standard sea level pressure in inches of mercury is ________.

29.92 inches

The ultimate cause of a sea breeze is the unequal heating of land and water.

True

Closely spaced isobars indicate high wind speeds.

True

love you mom!: adryane waz here!<3 remeber to study hard.

(:

When a hurricane moves onto land, it rapidly loses its punch; that is, the storm declines in intensity. Which of the factors listed below contribute to this loss of punch?

both A and B

Tornadoes are most often generated along the cold front of a middle-latitude cyclone.

True

In a mature middle-latitude cyclone, the warm front precedes the cold front.

True

Positive feedback mechanisms produce results that are opposite of the initial change and tend to offset it.

False

Positive feedback mechanisms produce results that are opposite of the initial change and tend to offset it.

False

When an active cold front overtakes a warm front ________.

an occluded front forms

Surface cyclones are accompanied by divergence aloft.

True

An air mass from the Gulf of Mexico is labeled ________.

mT

A tornado warning is issued by the National Weather Service after a tornado has been sighted in an area or is indicated by weather radar.

True

Thunderstorms are usually associated with nimbostratus clouds.

False

Cold fronts usually move more slowly than warm fronts.

False

On a weather map, ________ fronts are shown by a line with triangular points on one side.

wrong answer. not warm.

Continental polar air masses seldom influence the weather south of the Great Lakes.

False

The eye of a hurricane is ________.

warmer than the rest of the storm

After the center of a mature wave cyclone passes, you should expect ________.

barometric pressure to rise

If you were 200 kilometers ahead of the surface position of a warm front, you would find the frontal surface at a height of about ________ km overhead.

1.0

If an observer sees cirrus clouds, followed later by cirrostratus, and then altostratus, he or she is witnessing the approach of a ________ front.

warm

Doppler radar aids tornado detection.

True

An mP air mass is ________.

cold and humid

The precipitation associated with a warm front typically arrives ________ the actual frontal boundary.

considerably ahead of

Saturn's rings are clusters of relatively small, individual particles; the rings observed on Jupiter are violent storm clouds swirling above the polar regions of the planet.

False

The most explosive events to occur on the Sun are ________.

solar flares

The Sun is considered an "average star."

True

The largest known volcano in the solar system is ________.
Answer

Olympus Mons on Mars

Large impact craters and large, domal features (probably representing viscous lava flows) have been imaged on the surface of Venus.

True

Lunar regolith breccia contains crystalline rock fragments and glassy fragments.

True

The outermost layer of the Sun is called the ________.

corona

Jupiter is the largest and most massive planet in the solar system.

True

How did the lunar maria most likely originate?

huge impact basins that were nearly filled with basaltic lava flows

During periods of high solar activity, huge cloudlike structures that appear as great arches extending from the Sun are often produced. These solar features are called ________.

prominences

The Sun produces energy by converting ________.

hydrogen nuclei to helium nuclei

The high surface temperatures of this planet have been attributed to the greenhouse effect.

Venus

The dark tail of a comet is called a coma

False

Astronomers currently estimate the internal temperature of the Sun at 1500˚C.

True

The Martian polar caps are thought to be mainly frozen methane and ammonia.

False

Pluto is now classified as a ________ in our solar system.

dwarf planet

Vast, circular to elliptical dark-colored, smooth areas of the Moon are known as ________.

lunar maria

Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________.
Answer

0.1 times those on Earth; major gases are water vapor and carbon dioxide

Comets are thought to be composed of dust and tiny, icy particles encased in small, solidified, metallic fragments.

False

The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ________ stage.

white dwarf

The greatest number of galaxies belong to the type known as elliptical galaxies.

True

When a main-sequence star has exhausted the fuel in the inner region, it becomes a ________.

red giant

The measure of a star's brightness is called its ________.

magnitude

Cool stars evolve much more quickly than do hot stars.

False

One of the most common units used to express stellar distance is the ________.

light-year

The Sun is considered an average star.

True

Stars having the same surface temperature radiate the same amount of energy per unit area.

True

The final stage in the evolution of a star like our Sun is a neutron star.

False

Hubble's law states that galaxies are receding from us at a speed that is proportional to their ________.

distance

The Milky Way is classified as a spiral galaxy.

True

The larger the magnitude number, the brighter will be the star.

False

The hottest main-sequence stars are also the most massive.

True

Which main-sequence stars are the most massive?

blue

Stars spend most of their life span as main-sequence stars.

True

Most galaxies in the universe are moving away from us.

True

These stars are produced during a supernova event.

black hole

The discovery that the universe appears to be expanding led to a widely accepted theory called ________.

the Big Bang

The measure of a star's brightness is called its magnitude.

True

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set