Geography Chapter 2

Where is the subsolar point on March equinox?

(point 3) In the middle on the equator line looks like its on the continent of Africa.

How many are 100W bulbs represented in each square meter of earth's surface

10.0

Light travels at a speed of approximately

300,000 kilometers per second ( 186,33 miles per second)

Which of the following best describes the range of the visible light spectrum?

400 nm to 700 nm

What is the temprature in Death Valley in degrees celsius?

46.0

At which latitude is there no sunrise on December 21

66.5 N

Systems encountered in nature at Earth's surface, such as forests are

both open systems in terms of energy and open systems in terms of matter

This position experiences constant night.

bottom pole

Which of the following cannot be attributed to the effects of Earth's rotation? a) latitudinal variations in net radiation b) deflection of the ocean currents c) daylength d) rise and fall of the tides e) deflection of the winds

latitudinal variations in net radiation

that atmosphere is ______ to gamma rays

mostly opaque

the atmosphere is ______ to radio waves with a 1 meter wavelength

mostly transparent

What does the solar wind first encounter when it gets closer to our planet?

the magentosphere

Which of the following is NOT one of the reasons for Earth's seasonality a) The moon's rotation around the Earth b) Earth's sphericity c) Earth's daily rotation on its axis d) Earth's axial tilt e) rotation of Earth around the Sun

the moon's rotation around Earth

Based on this figure, polar regions are cooler than tropical regions because

the sun's energy is spread over a greater surface area and scattered by more atmosphere.

the atmosphere is _____ to visible light

transparent

In the next figure, the sun radiates most of its energy in which portion of the electromagnetic spectrum?

visible

This position experiences constant day length.

Arctic circle

In the Southern Hemisphere, the vernal equinox falls approximately on what day?

September 21

This position experiences longer days and shorter nights.

Continent of America

This position would experience Midnight sun. {3} and {4}

Earth's Axis

This position experiences lesser insolation intensity.

Earth's axis

This position experiences equal days and equal nights. {3} and {4}

Equator

Which of the following characterizes Earth's revolution?

It determines the timing of seasons and length of the year.

If the subpolar point is located at the equator after the southern hemisphere's summer, which day of the year is it?

March 21

On which of the following days can there be 12 hours of daylight and 12 hours of darkness everywhere on earth?

March 21

which of the following is NOT true about sunspots? a) More sunspots indicates increased solar radiation b) sunspots are brighter that the rest of the suns surface. c) Sunspots can be up to 12 times larger than Earth. d) Sunspots are surface disturbances caused by magnetic storms e) Sunspots can produce flares and prominences.

Sunspots are brighter than the rest of the Sun's surface.

Which is true of the December solstice

The Antarctic Circle is completely within the circle of illumination.

Click on the correct globe or corresponding letter boxes to answer. Which globe (top or bottom) represents June solstice? {3} and {4}

Top globe ( the continent of America is closer to the sunlight in the diagram)

This position experiences greater insolation intensity with the sun more directly overhead.

Tropic of Cancer

This position is at the sun's declination during the summer for the Northern Hemisphere. {3} and {4}

Tropic of Cancer

This position experiences longer nights and shorter days (3) and (4)

Tropic of Capricorn

This position is at the sun's declination during the winter for the Northern Hemisphere. {3} and {4}

Tropic of Capricorn

Earth's axis tilt is 23.5 measured from

a line that is perpendicular to the plane of the ecliptic

Which of the following are true of the equinoxes

a) 12 hour daylength at all latitudes b) Solar declination at the equator c) Daylength decrease after autumnal equinox

Which aspects of seasonality are caused by either revolution or rotation? (Select the three that apply)

a) length of a tropical year b) duration of the seasons c) daily pattern of days and nights

The shape of earth's orbit around the sun is

an elipse

What happens when protons collide?

an explosion

This position experiences shorter days and longer nights.

area off of brazil in between the tropic of capricorn and the antarctic circle

the solar constant is the

average amount of radiation received at the top of the earth's atmosphere

Which of these statements about the Earth system is incorrect a) Earth represents a complex integrated system. b) Earth represents an open system in terms of energy. c) Earth represents a closed system in terms of matter. d) The Earth's systems are adding new resources and matter all the time

d) The Earth's systems are adding new resources and matter all the time.

After 2 protons collide they become lighter. What is their mass converted to?

energy

which of the following types of radiation have the shortest wavelengths

gamma waves

What type of feedback maintains stability in a system; i.e., what type of feedback keeps a system functioning properly?

negative feedback

If Earth warmed up, and more snow fell because of more water vapor in the atmosphere, and that snow then reduced Earth's temperature, which increased snow cover, then the initial increase in snowfall would be ________ feedback while the continued increase in snowfall would be _______ feedback

negative feedback, positive feedback

The feedback loop between Artic ice and albedo shown below is: Tempratures rise ➡️ Arctic sea ice metls ➡️ As reflective ice disappears' darker ocean water absorbs more heat.

positive feedback loop

What powers Earth and our lives?

radiant energy from the sun

Based on the figure, which of the following bandwidths of the electromagnetic spectrum is the longest?

radio

which of the following types of radiation have the longest wavelengths

radio waves

The basic idea behind the planetesimal hypothesis is that

small grains of cosmic dust and other solids gradually accrete to form planetesimals that may grow to become protoplanets and eventually planets.