Chapter 12, Problem 9RAT

Fish don’t live very longer in water that has just been boiled and brought back to room temperature. Why?

(a)	There is now a higher concentration of dissolved ${\text{CO}}_{\text{2}}$ in the water.
(b)	The nutrients in the water have been destroyed.
(c)	Since most of the water was evaporated while boiling, the salts in the water are now more concentrated, which has a negative effect on the fish.
(d)	The boiling process removes the air that was dissolved in the water. Upon cooling, the water is void of its usual air content, and hence the fish drown.