A pond shows the presence of algal bloom in it. For night-time, what is the interpretation with respect to the amount of oxygen and nitrates dissolved in that water? A. Amount of dissolved oxygen will be lesser than the average, and amount of nitrates will be high due to the presence of a large number of algae in it. B. Amount of dissolved oxygen will be higher than the average, and amount of nitrates will be less due to the presence of a large number of algae in it. C. Amount of both, oxygen and nitrates, will be higher than the average due to the presence of a large number of algae in it.