question_answer

An environmentalist believes that if the level of dissolved oxygen of waterfalls is below the average level, the algal bloom will also disappear. Explain by citing an example of a water body.

Answer:

In a water body drastic decrease in oxygen replenishment will cause various effects. Such as decreased oxygen level will kill aquatic animals. Decomposition will be replaced by putrefaction which is anaerobic. It will produce secondary pollutants that will kill the algal bloom.