Question

Q4. Consider the following statements

1. A decline in a macrophyte community may indicate water quality problems.

2. Low nutrient levels may create an overabundance of macrophytes, which may interfere with lake processing.

Which of the above statements are correct?

• A. a) 1 only
• B. b) 2 only
• C. c) Both 1 and 2
• D. d) None of the above

Answer 1

The correct option is A

a) 1 only

• A decline in a macrophyte community may indicate water quality problems and changes in the ecological status of the water body.
• Such problems may be the result of excessive turbidity, herbicides, or salinization.
• Conversely, overly high nutrient levels may create an overabundance of macrophytes, which may in turn interfere with lake processing