Respuesta :

Answer:

Explanation:

Site A eroded 150 cm in 2000 and 100 in 2011, its defences are newly installed rock groynes. Site B is eroded 160 cm 2000 and 180 in 2011, it has no defences. Site C eroded 150 cm in 2000 and 40 cm in 2011 and its defence is a sea wall. Site D eroded 40cm in 2000 and 20cm in 2011. overall site D erodes the least.

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