The law of superposition states that in an undeformed sequence of sedimentary rocks the oldest rocks will be at the bottom while
the
youngest will be on top. Notice the word undeformed in the last sentence: that means the naturally occurring rock layers are
somehow altered, causing confusion or gaps in the geologic record. Changes to the rock strata can occur due to a variety of geologic
events. Which geologic event is INCORRECTLY identified?
es )
A)
A. Faulting due to stress and fracture.
B)
B. Folding of layers due to compression.
D. Intrusion of magma at Earth's surface
D)
C. Unconformity showing erosion and deposition
History of the Earth
No
youngest will be on top. Notice the word undeformed in the last sentence: that means the naturally occurring rock layers are
somehow altered, causing confusion or gaps in the geologic record. Changes to the rock strata can occur due to a variety of geologic
events. Which geologic event is INCORRECTLY identified?
es )
A)
A. Faulting due to stress and fracture.
B)
B. Folding of layers due to compression.
D. Intrusion of magma at Earth's surface
D)
C. Unconformity showing erosion and deposition
History of the Earth
No
2 answers:
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Answer:
10.6 mA
Explanation:
t = time interval = 1.00 s
q = magnitude of charge on each ion = 1.6 x 10⁻¹⁹ C
n₁ = number of Na⁺ ions = 2.68 x 10¹⁶
q₁ = charge due to Na⁺ ions = n₁ q = (2.68 x 10¹⁶) (1.6 x 10⁻¹⁹) = 0.004288 C
n₂ = number of Cl⁻ ions = 3.92 x 10¹⁶
q₂ = charge due to Cl⁻ ions = n₂ q = (3.92 x 10¹⁶) (1.6 x 10⁻¹⁹) = 0.006272 C
i₁ = Current due to Na⁺ ions = =
= 0.004288 A
i₂ = Current due to Cl⁻ ions = =
= 0.006272 A
Current passing between the electrodes is given as
i = i₁ + i₂
i = 0.004288 + 0.006272
i = 0.01056 A
i = 10.6 x 10⁻³ A
i = 10.6 mA