Thermal pollution in river water:
(A) Increases the solubility of oxygen (B) Promotes the growth of certain fish (C) Increases the metabolism of fish (D) May cause elimination of most sponges and mollusks (E) Does not change the ecological balance of river
Choose the correct answer from the options given below:

Correct option is B

Thermal pollution, which refers to an increase in water temperature due to industrial discharges or other anthropogenic factors, has the following effects:
· (B) Promotes the growth of certain fish: Warm temperatures may favor species adapted to higher temperatures, such as certain invasive or thermophilic species.
· (C) Increases the metabolism of fish: Higher temperatures accelerate metabolic rates, often leading to increased oxygen demand.
· (D) May cause elimination of most sponges and mollusks: Many aquatic organisms, such as sponges and mollusks, are sensitive to temperature changes and may not survive in warmer waters.
Incorrect Statements:
· (A) Increases the solubility of oxygen: Warmer water decreases the solubility of oxygen, reducing its availability.
· (E) Does not change the ecological balance of river: Incorrect, as thermal pollution disrupts ecological balance by altering species composition and oxygen levels.