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ale4655 [162]
4 years ago
14

Explain what is meant by Pleistocene ice age

Chemistry
1 answer:
makkiz [27]4 years ago
7 0

By Pleistocene ice age is meant the glacial periods that appeared in the Pleistocene. The Pleistocene is the first epoch of the Quaternary. It is an epoch when there was a so called ''ice age'' on the Earth, or rather a glacial period. During this ice age the planet had much lower temperatures on a global scale. The climate was also much drier. Lot of ocean water was frozen in the ice sheets that were stretching deep into the North American and Eurasian continents, which resulted in much lower sea levels that today as well. The places further north than 40 degrees of latitude were almost exclusively covered with ice, so life was almost impossible apart from some coastline places.

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Is NaCH an element ? why or why not?
Mandarinka [93]
I believe you mean NaCI*, (sodium chloride) . Sodium Chloride is not an element, it is known as an ionic compound, reason being because it forms an ionic bond with Na and CI.
5 0
4 years ago
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Why do 15 year old girls need more iron than 15 year old boys
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Answer:is that a question problem or-

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3 years ago
The 235U isotope (atomic mass = 235.00) undergoes fission when bombarded with neutrons. However, its natural abundance is only 0
Marianna [84]

Answer:

So ²³⁵UF₆ effuses 1.0043 times faster than ²³⁸UF₆

Explanation:

The rate of effusion of two gases A and B can be expressed by <em>Graham's law</em>:

\frac{EffusionRateA}{EffusionRateB}=\sqrt{\frac{M_{B}}{M_{A}} }

Where M is the molar mass, and in this case A is ²³⁵UF₆ while B is ²³⁸UF₆.

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Putting the data in Graham's law:

\frac{Rate^{235}UF_{6}}{Rate^{238}UF_{6}}=\sqrt{\frac{352}{349} } = 1.0043

So ²³⁵UF₆ effuses 1.0043 times faster than ²³⁸UF₆.

4 0
3 years ago
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Answer:

Coal is the fossil fuel causing the most pollution.

Explanation:

I hope this helps.

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