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  Water insecurity is defined as the lack of a reliable source of water, of appropriate quality and quantity to meet the needs of the local human population and environment. It is often caused by water sc...

This question requires differentiating the equation to find where its gradient is equal to zero. Differentation is done via a simple equation -->  if y = xⁿ then dy/dx = nx^n-1

While both the imperfect and preterite tenses are used to refer to actions in the past, they are used under different circumstances. In general, the preterite tense is used when talking about completed ac...

Between the years 1933-1939 the Nazi regime controlled Germany politically, socially and religiously. Socially, such was done so through the arts and media in forms including radio, newspapers, photograph...

Firstly, the most obvious difference is that negative tú commands are preceded by a negative word such as 'no' or 'nunca'. These two types of tú command also differ in the way that they are formed grammat...