Given :
The temperature of Pokhara lying at an altitude of 900 m is 20 degree Celsius.
To Find :
The temperature of MT Everest base camp lying at an altitude of 6000 m.
Solution :
Let, temperature at 6000 m height of MT Everest is T.
So, by proportionality constant :

Therefore, the temperature of MT Everest base camp lying at an altitude of 6000 m is 3°C .
I believe the answer is: <span> preservation of evidence.
</span><span> preservation of evidence is critically important because the genetic Trace or fingerprints that left on the evidence could be easily erased.
When such evidence is erased, the justice department wouldn't have sufficient proof when they are prosecuting the suspects.
</span>
Andy goldsworthy uses <u>natural materials</u> to create sculptures that are ephemeral. Andy Goldsworthy is a popular artist who is known for constructing complex and elaborate site-specific sculptures from natural materials. Hence, the correct answer is natural materials. Read below about sculptures.
<h3>What are sculptures?</h3>
Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts.
Therefore, the correct answer is as given above
learn more about sculptures: brainly.com/question/26864438
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The answer is: c.The earliest third parties in the United States arose as a result of the Great Depression.
The great depression happen in 1920s, but the earliest third party has been around since the 1800s. Those third p[arty arise because there are a lot of segment in the population felt that their values/principles were not fully embodied by the existing two dominant parties. So, they decided to form third party alternative.