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inessss [21]
3 years ago
7

Another students says that the earth’s magnetic poles have flipped many times in the past. How would you evaluate their statemen

t?
Question 18 options:

This is a true statement.


This false because the magnetic field is fixed and cannot change.


This is false because a compass always points at the true North Pole.


This is false because the magnetic field has only flipped once.
Biology
1 answer:
kramer3 years ago
7 0

Answer:

True

Explanation:

As a matter of geological record, the Earth's magnetic field has undergone numerous reversals of polarity. We can see this in the magnetic patterns found in volcanic rocks, especially those recovered from the ocean floors. In the last 10 million years, there have been, on average, 4 or 5 reversals per million years.

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3 years ago
Each isotope has a special name derived from Latin (protium, deuterium, and tritium). What structural feature do these names ref
Eduardwww [97]

An isotope of any element is the same, with a variation in the neutrons of the nucleus.

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Deuterium is 2H  or Hydrogen-2 has one neutron.

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3 years ago
How does collecting natural gas effect the environment?
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3 years ago
A mutation that involves one or a few nucleotides is called
inysia [295]

A mutation that involves one or a few nucleotides is called

a) mutagen

b) inversion

c) point mutation

d) translocation

Answer:

c) point mutation

Explanation:

When only one or a few nucleotides of a gene are changed by mutation, this is called a point mutation. A point mutation can add one additional nucleotide to the wild type gene or may delete or substitute a nucleotide from it. For example, if a wild type gene sequence is "ATATATATA", then the addition of "C" at the position 4 will change it into "ATACTATATA". This addition of new nucleotide is called point mutation since only one nucleotide is added to the gene. Point mutations can cause serious genetic disorders such as sickle cell anemia.

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AlexFokin [52]

Answer:

Yes because we don’t live by an ocean

Explanation:

5 0
3 years ago
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