<span>In continental Middle America, climate and other
environmental conditions vary by altitudinal zone where Tierra fria rank 3rd
as the highest zone. Tierra nevada is the highest followed by Tierra helada,
Tierra fria, Tierra templada and Tierra caliente being the lowest.</span>
The correct answer would be, No, very little work on outside world.
Very little work on outside world when you rub your hands together to warm them.
Explanation:
When you rub your hands together to warm them up, a friction is created which helps in generating heat within the hands, and in this way the hands are kept warm.
When you rub your hands, the heath goes and disappears within your body, and a very little part of the heat goes into the environment. So this rubbing has a little work on outside world.
As far as the efficiency of this process is concerned, It is very high, as the heat generates and remains within the human body after rubbing and a very little goes on outside world.
Learn more about Friction at:
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There much lot of graft and corruption amongst the elected officials.
<span>In randomized controlled trials, people are randomly assigned to each category to offset any potential bias.
</span>Selection bias<span> is the phenomenon where</span><span> the </span>selection<span> of people or groups is not adequately randomized to offset potential bias in research studies. This in turn does not ensure that the study samples included in research are representative of the population needed to be tested on.</span>
