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Earth System Science and Physical Geography
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Earth System Science and Physical Geography
Earth System Science and Physical Geography
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1
Question
What does Earth system science examine globally?
Answer
An integrated system of interacting air, water, rocks, and life.
2
Question
How does Earth's cooling state affect geological activity?
Answer
A cooling planetary body with active geological processes.
3
Question
Which two processes principally drive Earth's landscapes?
Answer
Plate tectonics and surface weathering.
4
Question
Which energy source dominates Earth's total energy budget?
Answer
Solar radiation; it supplies about 99.9% of Earth's total energy budget.
5
Question
How is Earth characterized with respect to matter?
Answer
A closed material system; matter is essentially recycled internally.
6
Question
Which branch of geography studies physical Earth systems?
Answer
Physical geography studies Earth's physical systems.
7
Question
Which branch of geography examines human surface activities?
Answer
Human geography studies human activities on Earth's surface.
8
Question
Which samples provide layered records of past environments?
Answer
Sediment cores; they preserve layered environmental archives through time.
9
Question
How does sediment age change down a core?
Answer
They become older with increasing depth.
10
Question
Which methods can date sediment-core layers precisely?
Answer
Radiometric methods, including radiocarbon and radioactive lead and caesium isotopes.
11
Question
Which microscopic remains can sediment cores contain?
Answer
Spores, pollen, and microscopic shells of aquatic organisms.
12
Question
What can preserved pollen reveal about past environments?
Answer
They indicate vegetation surrounding the lake or estuary through time.
13
Question
Why can vegetation changes indicate climate change?
Answer
Vegetation distribution is strongly controlled by climate.
14
Question
Which sediment evidence records changing surrounding vegetation?
Answer
Changes in the types of spores and pollen preserved.
15
Question
Which environmental conditions can microscopic aquatic shells help reconstruct?
Answer
They can indicate salinity, temperature, oxygen-isotope conditions, and water depth.
16
Question
Why can shell chemistry reveal past water conditions?
Answer
They build shells from compounds in surrounding water.
17
Question
Fill in the blank: Earth system science links the geosphere, hydrosphere, atmosphere, and ______.
Answer
The geosphere, hydrosphere, atmosphere, and biosphere.
18
Question
Which Earth sphere includes rocks and solid materials?
Answer
The geosphere consists of Earth's rocks and solid materials.
19
Question
Which Earth sphere includes liquid water?
Answer
The hydrosphere consists of Earth's liquid water.
20
Question
Which Earth sphere includes gases surrounding the planet?
Answer
The atmosphere consists of gases surrounding Earth.
21
Question
Which Earth sphere includes all living organisms?
Answer
The biosphere consists of life on Earth.
22
Question
What do the cliffs at the Twelve Apostles represent?
Answer
Ancient seabed approximately 12 million years old.
23
Question
Which material predominantly forms the Twelve Apostles cliffs?
Answer
Tough marine shell material.
24
Question
Why were ancient southern Australian seabeds uplifted?
Answer
Collision with Asia placed Australia under major geological forces.
25
Question
How did former seabeds become exposed along Victoria's coast?
Answer
They were uplifted from the sea by tectonic deformation.
26
Question
Which skill is developed through physical geography practical work?
Answer
Landscape interpretation using minerals, rocks, and geological maps.
27
Question
If a hill contains volcanic rock, how may it be interpreted?
Answer
They may be interpreted as extinct volcanoes.
28
Question
How many important rock-forming minerals are initially studied?
Answer
Seven common and important minerals that make up rocks.
29
Question
How many common rock types are subsequently examined?
Answer
Approximately 15 to 20 common rock types.
30
Question
Over what interval do El Niño and La Niña phases cluster?
Answer
Approximately 30 to 40 years.