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They travel at the same speed (speed of light) in vacuum, and they can both be polarised.

An example of an advantage of an organisation becoming a multinational is that they can benefit from an increased number of potential customers and therefore multinationals can have more customers, leadi...

Preterite is used for completed actions in the past such as 'fui al baile anoche' 'I went to the dance last night'. This action is completed as you're not still at last night's dance. Furthermore, if you'...

Different substances (fractions) can be separated as they have slightly different boiling points. Different hydrocarbons condense at different sections of the fractionating column, which is very hot at th...

Active transport is the movement of substances against their concentration gradient. The substance moves from an area of low concentration to an area of high concentrations, across a partially permeable m...