Exam (elaborations)
5905 Science Praxis 1 QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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5905 Science Praxis 1 QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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5905 Science Praxis (1)1.core: Center of the earth; composed of iron and some nickel; solid
inner core & liquid outer core
2.mantle: the layer of of earth outside the core; mostly solid and makes
up about 70% of Earth's volume
3.crust: the rocky outer shell of the planet
4.lithosphere: thin, upper part of the mantle and the outermost
crust; the rock consists of cooler, brittle rock
5.asthenosphere: below the lithosphere; contains malleable rock that
can move over time
6.igneous rock: molten magma that has cooled under Earth's surface;
associated with volcanic activity
7.sedimentary rock: created by underwater sediments in the ocean
compacted by pressure as the sediment layer builds up
,8.metamorphic rock: formed when either igneous or sedimentary rock is
subject to extreme heat and pressure
9.gases in the atmosphere: Nitrogen -
78% Oxygen - 21%
Argon - 0.9%
Carbon dioxide - 0.038%
10.troposphere: near the surface of Earth; where weather takes place
and the location of almost all clouds; pressure and temperature
decrease with height in this layer
11.stratosphere: less dense and temperature increases with height;
absorbs much of the ultraviolet energy from the sun
12.mesosphere: temperature decreases with height; most meteors burn
up when entering
13.thermosphere: extremely thin; an abundance of ions; temperature
increases with height
,14.exosphere: outer most layer; very few particles
15.ozone layer: located in the lower part of the stratosphere; absorbs
nearly 99% of the sun's ultraviolet light
16.ionosphere: Upper part of Earth's atmosphere
-encompasses both mesosphere and thermosphere
17.barometer: measure atmospheric pressure
18.aurora/australis borealis: natural atmospheric light displays; result of
Earth's photons emitting light as they collide with solar wind particles
and regain electrons
19.hydrology: The study of all water on Earth, including its movement
and distrib- ution.
, 20.hydrosphere: all the water on Earth's surface, groundwater, and
water in the atmosphere
21.waves: formed by winds on the surface of bodies of water
22.tectonic plates: plates in the lithosphere that shift causing
transformations to Earth's landscape
23.continental drift: the gradual movement of the continents across
the earth's surface
24.Pangaea: supercontinent
25.earthquakes: destructive releases of energy in Earth's crust caused
by seismic waves
26.fault: a fracture between two plates
27. epicenter: The location on the surface directly above the focus of the
earthquake
28.Seismometer (Seismograph): measures and records earthquakes
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