Year 2026 – Study Guide and Practice Questions
Where is LSU located in terms of Latitude and Longitude? - correct answer ✔✔ 30 degrees and
25 minutes North, 91 degrees 10 minutes West
To save on aviation fuel, airlines schedule flight routes along the shortest distance between two
points. The shortest distance between two international cities is along a _____________. -
correct answer ✔✔ Great Circle
Lines of latitude are ~spaced evenly (~111 km or 69 miles per degree). What is the distance
between the Equator and the Tropic of Cancer? - correct answer ✔✔ 2608.5km
What is the distance between the Tropic of Cancer and the Arctic Circle? - correct answer ✔✔
4773km
__________________ is NOT available on google earth. - correct answer ✔✔ Conic Projection
A GIS is... - correct answer ✔✔ a way to display spatial data
how many degrees of latitude separate the equator from the north pole? - correct answer ✔✔
90
the _______ divides Earth into two equal halves - correct answer ✔✔ equator
what causes particulate matter to be high in the Sahara in northern Africa? - correct answer ✔✔
dust storms
Argon gas (Ar) - correct answer ✔✔ most abundant natural gas
,Nitrogen gas (N₂) - correct answer ✔✔ most abundant gas in the atmosphere
Oxygen - correct answer ✔✔ exists as a diatomic and triatomic molecules in the atmosphere
Methane (CH₄) - correct answer ✔✔ from decomposition of organic matter
Water (H₂O) - correct answer ✔✔ Variable amount (0.1% to 1.0% by volume) in atmosphere
Carbon Dioxide (CO₂) - correct answer ✔✔ 0.039% by volume in atmosphere
As you traveled up into the atmosphere (increasing altitude), the pressure _______. - correct
answer ✔✔ decreases to low pressure
ozone layer - correct answer ✔✔ blocks UV radiation
Mesopause - correct answer ✔✔ coldest part of the atmosphere
Troposphere - correct answer ✔✔ where weather occurs
Stratosphere - correct answer ✔✔ Joseph Kittinger Jumped from a ballon in this part of the
atmosphere
Thermopause - correct answer ✔✔ 480km
Thermosphere - correct answer ✔✔ high temperatures (up to 1200°C but not hot)
, Clouds in the troposphere end at the tropopause because _______. - correct answer ✔✔ the
stratosphere is too warm
Several gases in the atmosphere are from biological sources, either respiration, photosynthesis,
or decomposition. Some atmospheric gases are man-made from industrial processes. Which gas
is only naturally occurring and exists in the atmosphere? - correct answer ✔✔ Argon gas (Ar)
chlorine atoms change ozone molecules to what? - correct answer ✔✔ oxygen molecules and
oxygen atoms
Clean Air Act - correct answer ✔✔ limits pollution released into atmosphere
Acid Rain - correct answer ✔✔ from nitrogen dioxide from car exhaust reacting with water
Montreal Protocol - correct answer ✔✔ banned Clorofluorocrabons (CFCs)
Photochemical smog - correct answer ✔✔ car exhaust
Aerosols - correct answer ✔✔ soot, dust, sea salt, and pollen
Temperature inversions - correct answer ✔✔ keeps pollution trapped near Earth's surface
we did NOT study (gas laws) - correct answer ✔✔ if mass and temperature are constant,
pressure increases as volume increases
location of subsolar point - correct answer ✔✔ equator
north pole on June 21st - correct answer ✔✔ midnight sun