Sound waves have two parts. the part of the wave where the particles of the medium are pushed together is called the
a) rarefaction
b) compression
c) pitch
d) amplitude

During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.