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Vadim26 [7]
2 years ago
15

The continents began to drift apart by the end of the _______ period.

Biology
2 answers:
hammer [34]2 years ago
5 0
<span>a. Cretaceous


</span>The continents began to drift apart by the end of the _______ period.

NOT:

b. Cambrian
c. Neogene
<span>d. Permian</span><span>

</span>
omeli [17]2 years ago
4 0

The right answer is Cretaceous

The Cretaceous corresponds to the last period of the Mesozoic (or secondary era). It ranges from -145.5 million years to -65.5 million years.

In the Cretaceous, the global climate was particularly hot, which allowed the massive development of plankton (chalk banks), but also that of large aquatic and terrestrial reptiles.

The end of the Cretaceous was marked by the biological crisis that saw the disappearance of the dinosaurs, but also 76% of the marine species of the planet.

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kow [346]

Explanation:

A rock would experience a temperature of 5500°C is about the core which is at a depth of 220km.

But let us use the earth's geothermal gradient to solve this problem.

The geothermal gradient is the rate at which temperature is increasing with depth.

The geothermal gradient 25°C/km

        At 5500°C,

               5500°C x  \frac{1}{25}  \frac{k}{C}  =    220km

But this is not so in nature, there are other heat sources that contributes to increasing temperature with depth such as radioactive heat and frictional heat.

learn more:

Mantle brainly.com/question/10758534

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snow_tiger [21]
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2 years ago
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Paladinen [302]
The answer is d.) neurotrophins
6 0
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How does water help you maintain homeostasis?
STALIN [3.7K]
 its body <span>temperature :) hope this helped </span>
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ella [17]
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Hope you understand what I said

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