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During inspiration the diaphragm contracts and flattens and the external intercostal muscles contract. This moves the rib cage up and out and increases the volume of the thorax. This reduces the pressure ...

The "passato prossimo" refers to events that are completed, but have some relation to the present.  Events which happened long ago can still be expressed in this tense when the event is seen as ...

Modernising the Soviet Union was important for a number of reasons, primarily the need to prove communism was a viable and strong form of government in the eyes of the Western world. As the first nation t...

There are 2 possible cases.

First when n is even, then let n = 2k where k is a positive integer.
Substituting n = 2k gives us:
(2k)³ + 3(2k) -1
= 8k³ + 6k ...

Possible answersAn ocean trench - created when a continental plate meets and oceanic plate, and the latter is subducted due to it being denser. As the oceanic plate is forced into the mantle, a deep under...