Which of the following statement is an accurate indication of the ecological health of a wetland?
A. Amount of inorganic and organic pollutants
B. Amount of oxygen dissolved
C. Density of microorganisms present
D. Density of birds in the wetland
Answer:D
Which of the following statement is an accurate indication of the ecological health of a wetland?
A. Amount of inorganic and organic pollutants B. Amount of oxygen dissolved C. Density of microorganisms present D. Density of birds in the wetland