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Bacterial DNA can spontaneously mutate, which means a change in the nucleotide reading frame. By chance, a mutation may cause the bacteria to prevent being killed by the antibiotic. For example, by develo...

A spit is a depositional landform that is a long, narrow beach comprising of sand or shingle, extending out from the mainland across an estuary. This landform is formed by longshore drift in the dominant ...

I would say:
Pendant mon temps libre, j'aime bien faire du shopping au centre commercial avec mes copains, mais desfois j'aime aussi m'amuser à la patinoire. Le weekend dernier, je suis allé au ciném...

While this problem could be done simply by inputting the appropriate numbers into the correct formula, it is good practice to draw a diagram of the problem in order to minimise any silly mistakes that may...