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It may seem confusing at first, but once you know the basics all you need to do is ask yourself what the purpose of the word is in your sentence. ‘A’ functions as the verb in the sentence...

The surface area of a sphere can be calculated using Area = 4 x Pi x r^2. Since we know the surface are of the first sphere is 4m^2, we can write: 4 = 4 x Pi x r^2. This simplifies to r^2 = 0.318. Taking ...

Dissolve the sample in ethanol and then add water. The presence of triglycerides is confirmed by a white emulsion forming.

This question is all about genetic diversity and more specifically how difference in alleles is what creates diversity within a population of a species. (here I would ask about whether the student underst...

Cigarettes are considered a demerit good since its consumption has a negative impact on the consumer. The product then results in an external cost as it becomes a cost for a third party as a result of an ...