2)
sunspot data

average sunspot number calendar year
12 1986
29 1987
100 1988
158 1989
142 1990
146 1991
95 1992

during which year would we expect to experience the most background static in satellite communication systems from space to earth?
a) 1986
b) 1989
c) 1990
d) 1992

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.