Botany - Environmental Issues Question with Solution | TestHub

Peak A - Sharp increase in BOD, the disappearance of clean water organisms

Peak B - Increase in dissolved oxygen, the reappearance of clean water organisms

Peak A - Increase in dissolved oxygen, the reappearance of clean water organisms

Peak B - Sharp decline in dissolved oxygen, the disappearance of clean water organisms

Peak A - Sharp increase in BOD, the appearance of clean water organisms

Peak B - Increase in dissolved oxygen, the disappearance of clean water organisms

Peak A - Increased number of anaerobic bacteria, the disappearance of clean water organisms

Peak B - Sharp decline in dissolved${\mathrm{O}}_2$, the reappearance of clean water organisms