What is the cause of the following symptom of pollution? There is ...

[bobypop]

What is the cause of the following symptom of pollution? There is a sharp drop in oxygen content but there is no algal bloom.
 
  A) Inorganic fertilizers were released nearby.
  B) Organic matter was released nearby.
  C) There is no oxygen in the water.
  D) Anaerobic bacteria are consuming most of the nutrients in the water.
  E) none of the above

Question 2

What is the cause of the following symptom of pollution? The water smells very bad and there are no fish.
 
  A) Inorganic fertilizers were released nearby.
  B) Organic matter was released nearby.
  C) The water has undergone eutrophication.
  D) Anaerobic bacteria are consuming most of the nutrients in the water.
  E) none of the above

[onowka]

Answer to Question 1

B

Answer to Question 2

D

[bobypop]

TY

[onowka]

You're welcome