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Words like I, you, she and they are all personal pronouns - this means that they take the place of nouns in a sentence to tell us who is doing an action, or is having an action done to them. We use them v...

The Treaty of Versailles imposed tremendously harsh sanctions and limitations on Germany for preventing German military and economic recovery. The German Army was almost fully demobilised,restricted to me...

In general, ser is used to describe permanent or innate qualities where as estar is used to describe something more temporary. So geographical location, weather and moods and continuous actions are descri...

A prokaryote is a much smaller and simpler cell than a eukaryote, whereas as prokaryote is usually 0.2 to 2.0um eukaryotes are 10-100um. Due to the small size, prokaryotes don't have a nucleus, which also...

During a crash the velocity of the car is reduced to zero. The deceleration of the car exerts a force on the driver causing injury. Without a crumple zone the change in velocity is instantaneous therefore...