Generally speaking, precession is believed to <u>occur as a result of the gravitational forces exerted by the sun and moon as they revolve around the earth.</u> When an object revolves, its axis of rotation exhibits a nodding or swish motion. There is a wobble in the movement of precession. This phenomenon is caused by the gravitational pull exerted by one body upon another, resulting in nutation.
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W-Water
C-Carbon Dioxide
S-Sun
G-Glucose
O-Oxygen
When plants perform photosynthesis and when plants or animals perform aerobic cellular respiration
Response would be correct, as in response to environment.