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alukav5142 [94]
3 years ago
7

1) How did seafloor spreading revive Alfred Wegener's ideas about continental drift?

Geography
1 answer:
Crazy boy [7]3 years ago
6 0

Answer:

1- Option (D)

2- FALSE

Explanation:

The seafloor spreading takes place because of the divergent plate motion. Alfred Wegener observed this motion of the seafloor and the continents but was not able to explain the main mechanism behind this until the new theory came into the picture. The divergent motion of seafloor and the motion of the continents were explained by the universally accepted theory known as the Plate tectonic theory. This theory was able to explain the mechanism behind this plate motion.  

The study of the seafloor spreading provided some pieces of evidence that supported the continental drift theory. They gave a basic idea about how the oceanic plate gets subducted (consumed) at the convergent plate motion that undergoes partial melting at greater depth. As a result of which the magma rises up to the surface on the overriding plates.

The crust represents the outermost layer of the earth. They are of 2 types, namely the oceanic and the continental crust. These crusts when slide past one another in a transform plate boundary, it is neither created nor destroyed. It remains conserved.

Thus, the correct answers are given above and the second statement is false.

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What information can be determined directly by analyzing seafloor drill cores? (Select all that apply.)
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Answer:

✓The type of sediment on the seafloor.

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Explanation:

Sea drilling cores are one way to get samples that can be used for analysis whereby some information such as type of sediment on the seafloor and type of rock on the seafloor can be known. Surface samplers can be collected from sediment at very top layers or inside deep of the ocean floor. These samples could have animals hidden, , water and some particles that can be analysed in the muddy deep, devices such as Coring devices can be used in collection of cores. The information that can be determined directly by analyzing seafloor drill cores are;

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Which of the following is not found in the Milky Way galaxy's galactic halo?
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Answer:

the Sun

Explanation:

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⭐hello my Friend!

1. Set of temperature, humidity and wind conditions peculiar to a homogeneous space of small extension to the soil surface.

2. For example, in a garden, a place that is sunny and protected from the wind will be significantly warmer than the rest of the garden for most of the year.

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8 0
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14. Which statement is supported by the information in the table?
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Answer:B

Explanation:

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