Exam 4 Life/ Earth
Which of the following is not a type of volcano
Hot Spot
Which of the following is not true of hurricanes
Hurricanes can travel long distances over land
What is the most abundant component (at 82%) of Jupiter's atmosphere
Hydrogen
We say that Earth's current climate is now in an___ because glaciers cover high latitudes. We further sat that it is in an ___ because the glaciers have melted mostly back to the pole
Ice age and Inter glacial period
The temperature to which air must be cooled for saturation to occur is called
Its dew point
What generally causes earthquakes
Motion of tectonic plates
The predominant gas in the atmosphere of Earth is
Nitrogen
Which of the following is not produced by water in the atmosphere?
Ocean Currents
With daytime temperatures that can reach 430c, why is nighttime on Mercury so cold?
With very little atmosphere, heat is quickly lost back into space
How much greater is the atmospheric pressure of Jupiter than Earth's? More than
a million times
At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions
about every 100 million years
Between which planets is the asteroid belt found
between Mars and Jupiter
A spinning cloud of interstellar gas tends to
flatten
Most meteors seen as shooting stars are about the size of
grains of sand
Compared to the density of water, the density of Saturn is
less
When the sun passes between the Moon and the Earth, we have
met our end
The earth rotates about its axis once per 24 hours, while the moon rotates about its axis once per
month
Volcanic island chains forms over hot spots when the
tectonic pate carrying the volcanoes travels over the stationary hot spot
Geologists measure earthquakes on the moment magnitude scale. This scale measures
the energy released by an earthquake
Air pressure is due to the
weight of overlaying air
The percentage of the earth's surface covered by ocean is about
70%
The Ring of Fire is famous among geologists because
90% of earthquakes and 75% of the worlds volcanoes occur here
Suppose that the air has reached its dew point. The relative humidity is
100%
What is likely the cause of 98 tilt of Uranus's axis
A collision with a large body early in the solar system's evolution
The angle at which the Sun's rays strike the Earth has a great effect on
A. Earth's seasons B. the way climate varies with latitude C. The intensity of solar energy received at Earth's surface D. All of the above (Answer D)
How is the atmosphere like a florists greenhouse
Both trap long wave electromagnetic radiation
What is the primary component of Venus atmosphere
CO2
A hurricane rotates about its eye, which is an
Calm area of low pressure
The ocean current called the Gulf Stream
Carries heat from the Gulf of Mexico to the North American coast and North Europe
What are Saturn's rings composed of
Chunks of ice and rock
How are weather and climate related?
Climate is the average weather over a period of many years
What is one reason that modern cities are warmer than rural areas
Concrete retains heat better then vegetation
Daylight and nighttime hours are equal
During the equinoxes
Temperature differences between nighttime and daytime on Earth are relatively small due to
Earth's relatively high daily spin rate and shortness of nighttime
Tsunami are usually caused by
Earthquakes
How long does it take for Earth to revolve around the sun
One year
The gases that make up 99% of Earth's atmosphere are
Oxygen and nitrogen
Wind is due to
Pressure differences in the atmosphere
Why is Mar's greenhouse effect negligible compared to that of Earth
The Martian atmosphere is much thinner and retains little heat
Why does air flow into the center of a cyclone
The center of a cyclone is a region of low air pressure
Which explanation best describes why Earth observers always see the same face of the moon?
The moon's rate of spin matches the rate at which the moon revolves around the earth
Nebular theory pertains to the formation of
The solar system
On what day of the year does the North Pole tilt most directly toward the Sun
The summer solstice
The seasons are primarily due to
The tilt of Earth's axis
What is the primary mechanism by which plants protect climate
They take carbon dioxide out of the air during photosynthesis
The planet with a mass most like Earth's is
Venus
The troposphere is the atmospheric layer where
Weather occurs