Advertisements
Advertisements
प्रश्न
Which of the following statements is correct?
विकल्प
Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.
Presence of large amount of nutrients in water restricts ‘Algal Bloom’.
Algal Bloom decreases fish mortality.
Eutrophication refers to increase in domestic sewage and waste water in lakes.
Advertisements
उत्तर
Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.
Explanation:
The other statements are incorrect because the high concentration of nutrients in water encourages algal outbreaks. Fish are poisoned by algal blooms, which also raises fish mortality. The term “eutrophication” describes the nutrient enrichment in water bodies brought on by agricultural runoff, which promotes plant growth.
