Eichhornia crassipes is particularly problematic because it:
“Reduces oxygen in water bodies” for eichhornia crassipes is particularly problematic because it. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. The inference is strongest when the relevant variables, spatial boundary, and time scale are explicit. Context can alter the magnitude of an effect without changing the definition of the focal concept. The remaining alternatives—“Grows slowly”, “Is allelopathic”, “Is native to Asia”—refer to different states, processes, or scales and therefore do not exp
Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation