A) above the Arctic Circle.
B) between the Tropic of Cancer and Arctic Circle.
C) above the Antarctic Circle.
D) at the equator.
E) between the Tropic of Capricorn and the Antarctic Circle.
G) All of the above
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A) Earth's curvature.
B) sun spot cycles.
C) variability in the Sun's output.
D) solar wind activity.
E) the changing distance of Earth from the Sun.
G) C) and D)
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A) the angular distance from the equator to the latitude to the subsolar point.
B) the latitude of the subsolar point.
C) the angular height of the Sun above the horizon.
D) the distance of the sun from Earth.
E) the difference between the angles of insolation at the equator and the poles.
G) C) and E)
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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
G) C) and D)
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A
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A) September 15 and March 30
B) March 30 and September 15
C) May 5 and August 10
D) April 25 and August 20
E) February 5 and November 5
G) A) and D)
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A) The subsolar point is at the equator.
B) The subsolar point is at the South Pole.
C) The subsolar point is at the Tropic of Cancer (23.5° N) .
D) The subsolar point is at the Tropic of Capricorn (23.5° S) .
E) The subsolar point is at the North Pole.
G) None of the above
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There are several examples given in the ...View Answer
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A) Scutum-Centaurus Arm
B) Perseus Arm
C) Cygnus X complex
D) Orion Spur of the Sagittarius Arm
E) Vela Molecular Ridge
G) B) and C)
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A) has 12 hours of day and 12 hours of night for all locations.
B) occurs four times during the year.
C) is the longest day of the year at any given place.
D) occurs only in the Southern Hemisphere.
E) is when the subsolar point is at one of the tropics.
G) A) and C)
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A
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A) energy derived from inside Earth.
B) radiant energy from the Sun.
C) tidal action of the Oceans and large lakes.
D) the moon.
E) utilities and oil companies.
G) B) and D)
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A) At 0° latitude,the rotational velocity is 1675 kmph (1040 mph) .
B) At 30° latitude,the rotational velocity is 1452 kmph (902 mph) .
C) At 90° latitude,the rotational velocity is 1452 kmph (902 mph) .
D) The linear velocity of rotation varies with latitude.
E) At 60° latitude,the rotational velocity is 838 kmph (521 mph) .
G) C) and E)
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A) is perfectly circular.
B) is elliptical.
C) has been constant since the birth of the Solar System.
D) results in a constant distance from the Sun throughout the year.
E) takes approximately the same amount of time as the orbit of other planets around the Sun.
G) A) and B)
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A) mainly visible light and infrared energy.
B) mainly ultraviolet and X-rays.
C) thermal infrared through radiowaves only.
D) only radiant energy within the visible light wavelength range.
E) those wavelengths of electromagnetic energy smaller than 0.01 μm.
G) D) and E)
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A) the moon's rotation around 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
G) A) and D)
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The equinoxes mark the beginning of the ...View Answer
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A) nuclear fission in Earth's core.
B) nuclear fusion in Earth's core.
C) dynamo-like motions in Earth's interior.
D) gravitational accretion.
E) sun spot activity.
G) A) and B)
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A) The poles always experience equal hours of day and night.
B) Annually,the hours of daylight varies the least at higher latitudes.
C) The hours of daylight varies depending on the latitude of the observer.
D) Annually,the hours of daylight is constant at each latitude.
E) Annually,the hours of daylight varies the most along the equator.
G) D) and E)
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A) on or around June 21.
B) when the subsolar point is at the Tropic of Cancer.
C) on or around December 21.
D) at the same time as the Northern Hemisphere's summer solstice.
E) during the Northern Hemisphere's equinox.
G) C) and E)
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A) The Sun emits shortwave radiation,whereas Earth emits longwave radiation
B) Because the Sun is so far away,it is impossible to measure the wavelengths of its radiation.
C) While the wavelengths emitted by the Sun and Earth are mostly the same,Earth tends to emit more shortwave radiation than the Sun.
D) The radiation emitted by the Sun and Earth are roughly the same wavelength.
E) The Sun emits longwave radiation,whereas Earth emits shortwave radiation.
G) C) and D)
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A
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A) It is one of millions of galaxies in the universe.
B) It is the largest galaxy in the universe.
C) It is a spiral-shaped galaxy.
D) It contains approximately 300 billion stars.
E) A supermassive black hole sits in the galactic center.
G) B) and E)
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