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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 a...
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 ...
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.
Covalen...
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 w...
A virus is made of DNA wrapped in a coat made of protein. It is very small, typically nanometres across (one billionth of a metre).
Viruses are different from bacteria as they are smaller...
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