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Vaccination involves the injection of small amounts of a pathogen - a microbe that causes disease - that is either dead or modified to provoke an immune response. Although these pathogens cannot ca...

A common law system is the term used to denote the type of legal tradition we have in the UK. The term also describes what our sources of law are. Other areas of the world - such as European countries - h...

This question uses the ideal gas equation. pV = nRT where the temperature is in Kelvin, the pressure in pascals and the volume in m3. To obtain the number of moles the equation is rearranged to give p = n...

Homogeneous goods, Firms are price takers, An infinite number of suppliers and producers, Firms are profit maximisers, There are no barriers to entry, Producers have perfect information

In Source A, we are able to depict Stalin as being very angry when facing the Berlin Airlift that took place between June 1948 to May 1949. Stalin himself had created the Berlin Blockade in June 1948, in ...