UNLV GEOG 103 EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
Which of the following best describes the condition of steady-state equilibrium? -
ANS System inputs and outputs fluctuate around a stable average.
________ is the practice of using public participation for scientific data collection and
monitoring. - ANS Citizen science
How far west you live from the prime meridian is measured as your ________, whereas an
imaginary line marking all those places at that same distance west of the prime meridian is
called a ________. - ANS longitude; meridian
Which of the following statements about Earth's shape is correct? - ANS The equatorial
diameter is 42 km (26 mi.) greater than the polar diameter.
Which of the following is not true of meridians? - ANS They are lines that run in an east-west
direction.
The main methodology governing geographic inquiry - ANS involves spatial analysis.
The diameter of Earth is largest when measured around the - ANS equator.
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, The basic idea behind the planetesimal hypothesis is that - ANS small grains of cosmic dust
and other solids gradual accrete to form planetesimals that may grow to become protoplanets
and eventually planets.
Which of the following sequences is arranged in order from shorter wavelength to longer
wavelength? - ANS X-rays, ultraviolet, visible, infrared
Which of the following does not accurately describe Earth's distance from the Sun? -
ANS Due to Earth's circular orbit, it is always equidistant from the sun throughout the year.
The dominant wavelength emitted by Earth is - ANS infrared.
Which of the following is correct regarding daylength? - ANS Day length is always 12 hours
long at the equator.
The Sun's altitude refers to - ANS the angular height of the Sun above the horizon.
For observers in the Northern Hemisphere, which of the following is true? - ANS Daylength is
longest on the summer solstice and is shortest on the winter solstice.
On June 21, the Sun never sets at Finn's location. Based on this, it can be concluded that Finn is
currently - ANS above the Arctic Circle.
What is the name of the location on Earth's surface that receives the Sun's perpendicular rays? -
ANS subsolar point
In 1974, Dr. Rowland and Dr. Molina made what observation vis-à-vis ozone (O3)? - ANS The
photochemical interactions of chlorofluorocarbons and O3
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
ANSWERS GRADED A+ 2025/2026
Which of the following best describes the condition of steady-state equilibrium? -
ANS System inputs and outputs fluctuate around a stable average.
________ is the practice of using public participation for scientific data collection and
monitoring. - ANS Citizen science
How far west you live from the prime meridian is measured as your ________, whereas an
imaginary line marking all those places at that same distance west of the prime meridian is
called a ________. - ANS longitude; meridian
Which of the following statements about Earth's shape is correct? - ANS The equatorial
diameter is 42 km (26 mi.) greater than the polar diameter.
Which of the following is not true of meridians? - ANS They are lines that run in an east-west
direction.
The main methodology governing geographic inquiry - ANS involves spatial analysis.
The diameter of Earth is largest when measured around the - ANS equator.
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, The basic idea behind the planetesimal hypothesis is that - ANS small grains of cosmic dust
and other solids gradual accrete to form planetesimals that may grow to become protoplanets
and eventually planets.
Which of the following sequences is arranged in order from shorter wavelength to longer
wavelength? - ANS X-rays, ultraviolet, visible, infrared
Which of the following does not accurately describe Earth's distance from the Sun? -
ANS Due to Earth's circular orbit, it is always equidistant from the sun throughout the year.
The dominant wavelength emitted by Earth is - ANS infrared.
Which of the following is correct regarding daylength? - ANS Day length is always 12 hours
long at the equator.
The Sun's altitude refers to - ANS the angular height of the Sun above the horizon.
For observers in the Northern Hemisphere, which of the following is true? - ANS Daylength is
longest on the summer solstice and is shortest on the winter solstice.
On June 21, the Sun never sets at Finn's location. Based on this, it can be concluded that Finn is
currently - ANS above the Arctic Circle.
What is the name of the location on Earth's surface that receives the Sun's perpendicular rays? -
ANS subsolar point
In 1974, Dr. Rowland and Dr. Molina made what observation vis-à-vis ozone (O3)? - ANS The
photochemical interactions of chlorofluorocarbons and O3
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
