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Biology, 19.09.2019 15:30 chrjergre6520

3.
a geologist has discovered a rare mineral that can only be found 200 km below the earth’s surface. this mineral’s chemical composition is fetio what kind of mineral is this?
sulfide
native element
nonsilicate oxide
rock-forming oxide
9.
how is radioactive decay used to determine the absolute age of rocks?
parent isotopes are compared to daughter isotopes.
daughter isotopes are compared to sister isotopes.
isotopes of different compounds are compared.
radioactive substances are compared to non-radioactive substances.
17.
match the definition with the correct term: a seismic wave that travels along the surface of a medium.
surface wave
s wave
body wave
p wave
22.
match the definition with the correct term: dune shaped as a crescent with an opening that faces the wind.
longitudinal
parabolic
transverse
barchan
46.
match the definition with the correct term: large rock particles less than 64 mm.
cinder cone
lava
lapilli
pluton
43.
which of the following is a probable source of earth’s magnetic field?
the sun
the earth’s tides
the moon
earth’s outer iron core
32.
reflects how close a measurement is to the true value of the thing being measured and is the exactness of that measurement.
precision; accuracy
validity; precision
accuracy; precision
accuracy; validity

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a geologist has discovered a rare mineral that can only be found 200 km below the earth’s s...

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