... he writes ‘sdunet’ by mistake. He should:A 14. leave it – it is clear what he means.B 16. draw lines to show which letters should be moved to correct the spelling.C 18. rub it out and write it ... DOs and DON'Ts Activity WorksheetRead about these candidates and the things they did when they took IELTS Academic Reading. What ... answers is wrong. She should:A 26. give two...
... surface area and porosity causes change in the composition of microbial community, increasing the number of total bacteria and nitrifying bacteria and improving oxygen uptake activity. Although ... method for estimating biofilm activity (Hanes and Irvine, 1968). Moreover, it is possible to separate a specific microbial activity and quantify it by adding an inhibitor (Surmac...