GEG 111 EXAM 4 HARPER COLLEGE LATEST 2023-2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT
DETAILED ANSWERS
Tsunami - (answer) A seismic sea wave, travelling at high speeds across the ocean, formed by sudden
motion in the seafloor.
Causes: Sea-floor earthquakes, submarine landslides, and eruption of an undersea volcano
Physical Structure of the Ocean - (answer) Basic structure consists of 3 horizontal layers:
1-Mixing zone
2-Thermocline transition zone
3-Deep cold zone
Mixing Zone - (answer) warmed by the sun and driven by the winds
Thermocline transition zone - (answer) Temperature decreases with depth
Deep cold zone - (answer) Temperatures are generally near 0 degrees Celcius but waters do not freeze
because of the lower freezing point of seawater.
Spring tide - (answer) The highest tidal range, which occurs when the Moon and the Sun are in
conjunction(at new moon) or in opposition(at full moon) stages.
Neap tide - (answer) Unusually low tide range produced during the first and third quarters of the
Moon, with an offsetting pull from the Sun
Fringing reef - (answer) grow near the coastline around islands and continents. They are separated
from the shore by narrow, shallow lagoons.
Barrier reef - (answer) Form parallel the coastline but are separated by deeper, wider lagoons. At their
shallowest point they can reach the water's surface forming a "barrier" to navigation.
, GEG 111 EXAM 4 HARPER COLLEGE LATEST 2023-2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT
DETAILED ANSWERS
Atoll - (answer) Are rings of coral that create protected lagoons and are usually located in the middle
of the sea.
Coral bleaching - (answer) Process through which corals expel their nutrient supplying algae, turning
white, leading to increased mortality.
Possible causes include very warm water, pollution, disease, sedimentation, changes in ocean salinity,
and increasing oceanic acidity.
Eolian Processes - (answer) Geomorphic (Earth shaping) processes caused by the wind.
-Air acts as an agent of erosion and deposition.
-Consistent local wind can prune and shape vegetation.
Alpine glacier - (answer) Refers to glaciers that form on mountains
Ice sheets - (answer) Refers to extensive masses of ice that may occur on a continental scale.
-These cover 81% of Greenland and 90% of Antarctica
Ice caps - (answer) A roughly circular glacier that covers an area less than 500,000 Km^2
Ice fields - (answer) An elongated glacier that forms over a mountain region.
Glaciel Drift - (answer) All material carried and deposited by a glacier.
Features associated with Alpine glaciation - (answer) -Cirque
-Horns
DETAILED ANSWERS
Tsunami - (answer) A seismic sea wave, travelling at high speeds across the ocean, formed by sudden
motion in the seafloor.
Causes: Sea-floor earthquakes, submarine landslides, and eruption of an undersea volcano
Physical Structure of the Ocean - (answer) Basic structure consists of 3 horizontal layers:
1-Mixing zone
2-Thermocline transition zone
3-Deep cold zone
Mixing Zone - (answer) warmed by the sun and driven by the winds
Thermocline transition zone - (answer) Temperature decreases with depth
Deep cold zone - (answer) Temperatures are generally near 0 degrees Celcius but waters do not freeze
because of the lower freezing point of seawater.
Spring tide - (answer) The highest tidal range, which occurs when the Moon and the Sun are in
conjunction(at new moon) or in opposition(at full moon) stages.
Neap tide - (answer) Unusually low tide range produced during the first and third quarters of the
Moon, with an offsetting pull from the Sun
Fringing reef - (answer) grow near the coastline around islands and continents. They are separated
from the shore by narrow, shallow lagoons.
Barrier reef - (answer) Form parallel the coastline but are separated by deeper, wider lagoons. At their
shallowest point they can reach the water's surface forming a "barrier" to navigation.
, GEG 111 EXAM 4 HARPER COLLEGE LATEST 2023-2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT
DETAILED ANSWERS
Atoll - (answer) Are rings of coral that create protected lagoons and are usually located in the middle
of the sea.
Coral bleaching - (answer) Process through which corals expel their nutrient supplying algae, turning
white, leading to increased mortality.
Possible causes include very warm water, pollution, disease, sedimentation, changes in ocean salinity,
and increasing oceanic acidity.
Eolian Processes - (answer) Geomorphic (Earth shaping) processes caused by the wind.
-Air acts as an agent of erosion and deposition.
-Consistent local wind can prune and shape vegetation.
Alpine glacier - (answer) Refers to glaciers that form on mountains
Ice sheets - (answer) Refers to extensive masses of ice that may occur on a continental scale.
-These cover 81% of Greenland and 90% of Antarctica
Ice caps - (answer) A roughly circular glacier that covers an area less than 500,000 Km^2
Ice fields - (answer) An elongated glacier that forms over a mountain region.
Glaciel Drift - (answer) All material carried and deposited by a glacier.
Features associated with Alpine glaciation - (answer) -Cirque
-Horns
