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What is the difference between the null hypothesis and the research hypothesis?

The null hypothesis: - States that results are due to chance, and not due a significant effect of the theory/idea the research is testing. The research hypothesis: - States that the results are not due to ch...
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Answered by Naomi W. • Psychology tutor
32765 Views

To what extent do humans modify the climate?

Humans modify climate to a considerable extent. Modification can be on a variety of scales. Globally, since the turn of the 19th century human activity is believed to have modified the net global temperature...
EW
2746 Views

Using Fick's Law, explain how rapid gaseous exchange takes place in a mammal

Gaseous exchange of oxygen and carbon dioxide (diffusion) occurs between the alveoli (tiny air sacs) and capillaries (microscopic blood vessels) inside the lung. Diffusion refers to the passive net movement ...
TC
Answered by Timothy C. • Biology tutor
15237 Views

What is the difference between the passé composé and the imperfect tense? How do I know which to use?

This is a common question for the native English speaker learning French as it is a concept that isn't so widely used in the English language. The passé composé (perfect) and the imperfect both have specific...
LJ
Answered by Laura J. • French tutor
3132 Views

How do you multiply matrices together?

Not all matrices can be multiplied together, so the first thing to do is check it's even possible! To do this write the matrices next to each other (we'll call the first one A and the second B). If the numbe...
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Answered by Rachael G. • Maths tutor
5390 Views