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The change brought by the war for black Americans was limited and contested. The war presented new demands for labour, generating opportunities for African Americans (AA) to economically participate, gain...

Antibiotics are important for treating bacterial infections that may be making us ill. There are many different antibiotics that work in different ways, and therefore they are suitable for treating differ...

The perfect tense is made up of two parts: the auxiliary (helping) verb and the past participle. These are two separate words and must both be present to construct the perfect tense. The auxiliary verb is...

Resistance primarily is 'how difficult it is for an electron to travel through a material'. When the electron travels through a material, it collides with ions which causes it to lose ene...

Firstly, try and make one of the variables (x or y) the same in both equation, in this instance because we have a positive and negative y if we add them, they will cancel out. Therefore multiply the first...