Year: 2023
Topic: Biology-Out Of Syllabus
Time :
1.
Which of the following statements is correct ?
(1). Biomagnification refers to increáse in concentration of the toxicant at successive trophic levels.
(2). Presence of large amount of nutrients in water restricts 'Alagal Bloom'.
(3). Algal Bloom decreases fish mortality.
(4). Eutrophication refers to increase in domestic sewage and waste water in lakes.