Rapid gas exchange can be accomplished more easily in air than in water because

Question

Quizplus · Accepted Answer

Water is more dense and viscous than air, which makes gas exchange more difficult. Gases must diffuse through the water, which slows down the rate of exchange. In contrast, air is less dense and viscous, making gas exchange more efficient. Options A and B are incorrect, as they refer to the content of gases in water and air, not the process of gas exchange itself. Option C is incorrect, as the rate of diffusion is typically slower in water than in air. Option E is also incorrect, as more energy is actually required to move water than air due to its greater density and viscosity.

Rapid Gas Exchange Can Be Accomplished More Easily in Air