1. The speed of sound in water is approximately 1500 m/s. a) What is the frequency of a sound wave with a wavelength of 1.5m. b) What is the period of this wave. 2. Water waves enter a dock at a rate of 120 crests per minute. At the dock are two poles 12m apart. A worker watches a particular wave crest pass from one pole to another in 4sec. a) Calculate the frequency of wave motion; b) Wavelength of the waves.

You would need to take a picture so i can see

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

The answer is that they are composed mostly of liquid water.