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Bad White [126]
3 years ago
5

Which statement about Earth’s core helps explain Earth’s magnetic field?

Geography
2 answers:
Hitman42 [59]3 years ago
3 0

Answer:

D: The inner core is liquid and moving.

Explanation:

Nesterboy [21]3 years ago
3 0

Answer:

the answer is D.

Explanation:

i got it right on edge:)

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How do scientists determine the relative age of rocks?
NISA [10]

Answer:

Super position

Faunal Succession

Crosscutting Relationships

Inclusions

Explanation:

Superposition: The most basic concept used in relative dating is the law of superposition. Simply stated, each bed in a sequence of sedimentary rocks (or layered volcanic rocks) is younger than the bed below it and older than the bed above it. This law follows two basic assumptions: (1) the beds were originally deposited near horizontal, and (2) the beds were not overturned after their deposition.

Faunal Succession: Similar to the law of superposition is the law of faunal succession, which states that groups of fossil animals and plants occur throughout the geologic record in a distinct and identifiable order. Following this law, sedimentary rocks can be “dated” by their characteristic fossil content. Particularly useful are index fossils, geographically widespread fossils that evolved rapidly through time.

Crosscutting Relationships: Relative ages of rocks and events may also be determined using the law of crosscutting relationships, which states that geologic features such as igneous intrusions or faults are younger than the units they cut across.

Inclusions: Inclusions, which are fragments of older rock within a younger igneous rock or coarse-grained sedimentary rock, also facilitate relative dating. Inclusions are useful at contacts with igneous rock bodies where magma moving upward through the crust has dislodged and engulfed pieces of the older surrounding rock.

5 0
3 years ago
(a) Evaluate 2 = 33<br>2<br>4<br><img src="https://tex.z-dn.net/?f=%20factorise%20%5C%3A%20%7Bp%7D%5E%7B2%7D%20%20-%20pq%20%7B%7
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4 0
3 years ago
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According to the lecture, 75% of US jobs are focused on providing services. This means they are in the __________ sector of the
Alla [95]
Answer:
C
Explanation
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3 years ago
When carbonate minerals come into contact with hydrochloric acid, they
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The answer is “fizz” .
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What is located at equal distance from the North Pole and south pole
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The PERIMETER of the equator cycle is about 40,000Km. The Greenwich cycle is a bit shorter as the earth is a bit an ellipsoid. About 37,000Km by Google Maps. The distance on the envelope between ANY antipodes (=opposite points on the axis, I won't use "diameter" to avoid confusion) is HALF the perimeter (If you walk the whole perimeter long, you'd get to the same point, of course). The distance through Earth is

D=P/Pi=37,000Km/Pi=about11777Km
7 0
3 years ago
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