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