When plants undergo photosynthesis, a reaction produces sugar, oxygen, and water. During respiration, stored energy from the pro
ducts of photosynthesis is converted to usable energy. In what form is the energy stored prior to use in respiration? A. Light energy
B. Kinetic energy
C. Heat energy
D. Chemical energy
Like you might have studied. Heated hair expands while colder air contracts. So, the sound isn't able to move as efficiently in cold air than it would in warmer air.