In the question given below, a sentence is given, divided into parts. One of the parts may contain an error. Identify the part that contains the error, and mark it as the answer. Ignore errors of punctuation. In case the sentence is correct as it is, mark option (5), that is, 'No error'. A 2008 study estimating that for every 10 metre’s rise in the water table, the pressure inside the rocks increased by almost 1 atm.