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A hypothesis test can be thought of as being somewhat similar to a court case. In a court case, we want to find out whether someone is either guilty, or not guilty, so we assume that they are not guilty, ...

Many different factors contributed to the Nationalists' triumph over the Republicans in the Spanish Civil War, and the question is asking you to explore the impact and significance of these factors on the...

The imperfect tense is the tense we use when we talk about an ongoing action in the past. It is therefore what we use when we talk about what we used to do when we were y...

At destructive plate margins, oceanic crust subducts beneath continental crust. In this zone of subduction a lot of friction is created as the plates move alongside each other. Over time, the build up of ...

An action potential is the signal neurons use to communicate with each other. It is caused by the rapid opening of sodium channels and influx of sodium ions. Because at rest the inside of the neuron is ne...