If these are your choices:
A. Warm water increases the speed of sound.
B. Cold water increases the speed of sound.
C. High water pressure decreases the speed of sound.
D. Low water pressure increases the speed of sound.
The answer is B. because warmer particles rises which is less dense than the cooler particles. Sound waves travels faster in a denser medium making statement B as the correct answer.
Metabolism- This chemical processes that occur within a living organism in order to sustain life.
C. To respect natural systems
Sustainable practices describes the ecological systems that remains diverse and active in time. This ecological term essentially describes how the ecological systems are kept productive and well maintained.
