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How is the perfect tense constructed?

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 ei...
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Answered by Juliet H. • French tutor
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Explain the resistance of and electrical component and what affects its value in a wire.

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 energy with each collis...
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Answered by John H. • Physics tutor
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Solve the Simultaneous equation: 4x+y=25, x-3y=13

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 eq...
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Answered by Anas K. • Maths tutor
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What is the difference between mitosis and meiosis?

Mitosis is the production of two genetically identical diploid daughter cells in one division while meiosis is the formation of four genetically different haploid daughter cells in two divisions. Mitosis occ...
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Answered by Oskar D. • Biology tutor
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Explain how different landforms may be created by the transport and deposition of sediment along the coast.

Spits are created by the process of longshore drift. Some eroded material is transported in the waves by processes such as, traction, saltation and suspension and is carried by the sea along the coastline. T...
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