(Solve the problem) The average speed of sound in water is 1,500 m/s. How long would it take a sound wave to travel 250,000 km?
(HINT: Use your dimensional analysis and metric conversion skills and remember:
K H D u d c m)

The answer is a) taiga because taigas are cold

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.