Russia is in which of the follwing contenint(s)?

Geography

2 answers:

irakobra [83]3 years ago

8 0

Hey there!

Russia is in Europe and Asia. (F)

Hope this was of help, have a great day :)

Luden [163]3 years ago

3 0

<span>ans is F. Europe and Asia</span>

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Calculate and compare the albedo temperature of Mars to Venus. Then compare the two albedo temperatures the planet’s albedo temp

Kryger [21]

Answer:

The albedo temperature for Mars and Venus are 210K and 184 K respectively.Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.Thus there is a chance that Mars would have had life in their history.

Explanation:

The albedo temperature is given as

$Te =\left [\dfrac{L(1-a)}{ (16\pi \sigma D^2}\right]^{1/4}$

Here

L = Solar luminosity = 3.846*1026 W m-2 K-4

D = distance from Sun

σ = the Stefan-Boltzman constant = 5.6704 * 10-8 W

a is the albedo constant whose value for Mars is 0.250 while for Venus it is 0.900

So the albedo temperature is given as

Venus: 184 K

Mars: 210 K

The black body temperature is given as

$Te =\left [\dfrac{L}{ (16\pi \sigma D^2}\right]^{1/4}$

By substitution of the values, the black body temperature for Venus and Mars are as

Venus: 327 K

Mars: 225 K

Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.

Thus there is a chance that Mars would have had life in their history.

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3 years ago

A group of scientists in Alaska notices that not only have atmospheric CO₂ levels increased at their sampling site but so too ha

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Answer: The release of methane from thawed permafrost

Explanation:

With increasing global warming, permafrost in the arctic is melting. The carbon and methyl clathrates present in permafrost escape into the atmosphere to form carbon dioxide and methane, both greenhouse gases.

In the Arctic, molecules of methane are trapped in ice crystals as methyl clathrates. When the temperature increases, these crystals release methyl clathrates which become methane when in contact with the atmosphere.

The cause of the increasing atmospheric $CO{2}$ is due to the the thawing of dead organisms present in the permafrost. As the permafrost melts, these organisms decay and release $CO{2}$ into the atmosphere.