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Prepositions are little words that describe the location of something, or where it’s going, like for, to, in, on, over, under in English. In German, they change the case of the noun that follows them. ...

There is a difference in the impact of flooding between MEDCs and LEDCs because of socio econmomic factors. MEDCs have better flood warning systems to alert the population to the possibility of a flood...

The most important thing about structuring any essay is knowing what you think about the question!  Before you work on the specifics of what goes in which paragraph, try to think of a short, one- or tw...

Isotopes of an element exist when the atoms of an element have different numbers of neutrons, or in other words the same atomic number but a different mass number.

Speed is how fast an object is moving, whereas velocity is an objects speed in a given direction.