whwhehweh Flashcards
Layers of the atmosphere
trophosphere, stratosphere, mesosphere, thermosphere, exosphere
features of the trophosphere
lowest layer, temp decreases at a constant rate as altitude increases.
features of stratosphere
layer of atmosphere that is above the trophosphere where temp increases as alt increases
features of mesophere
the strong lower part of the mantle between the asthenosphere and the outer core. also the layer of the atmosphere between strato and thermo and in which temp decreases as alt increases
thermosphere features
the uppermost layer of the atmosphere, in which temperature increases as altitude increases
exosphere features
particles are incredibly spread out, no air to breathe, cold.
how eccentricity and obliquity contirbute to the Milankovitch Effect.
promote more extreme variation in irradiation of the northern hemisphere and less extreme variation in the south.
how specific heat affects wind + pressure
heating (or cooling) of a column of air leads to horizontal differences in pressure, generating a pressure gradient force which causes the air to move and a circulation to develop.
low pressure
cloudy
ocean current and how it is formed
a
how do seismotologists figure out the epicenter of an earthquake
s-p time method. seismograms of same earthquake from different locations. time-distance graph. distance by reading horizontal axis. then locate epicenter.
wegners four pieces of evidence
fossils, mountain comp, oil in non tropical areas, puzzle pieces
200 million year old rocks
none because they get recycled through subduction
how there is magentic evidence contained in rocks showing how Earth’s magnetic poles have flipped throughout time.
lava lines up with north pole.
relative speed of waves
p, s, l
lithosphere
crust + uppermost mantle
asthenosphere
upper layer of mantle, below litho.
outer core
liquid. mostly iron and nickel
inner core
solid ball, mostly iron and nickel.
Despite there being plenty of evidence supporting Wegener’s theory, he couldn’t correctly explain how the continents were moving. His ideas didn’t match many widely spread ideas, like the idea that animals used stepping stone islands, land bridges, or floated across the ocean on a log to get from place to place.
yeah
shadow zone
The shadow zone is an area that does not receive any P-waves because S-waves are stopped by the liquid outer core, as they can not travel through liquids, and P-waves are bend around it.
