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At any level, the conclusion to an English essay should not be merely a bland summary of the content already explored . It may be a good idea to summarise the main points that have led to the final discussio...

Although this might look like a smart trick at the beginning, the truth is that as a physicist this kind of approximations turn out to be useful very often. This is quite likely to come up in the PAT as well...

Left wing: - believes the role of the state is to intervene in social and economic policy -believes in the nationalisation of industries -believes people need assistance- for example welfare state and redist...

Ionic bond - this is an electrostatic force of attraction between two oppositely charged ions, i.e. a positively charged ion and a negatively charged ion. Covalent bond - this is a bond where electrons are s...

Scientists in labs use a technique called gel electrophoresis which allows them to separate a mix of DNA fragments by size . This is used in conjunction with PCR (polymerase chain reaction) and restriction d...