In many respects, photosynthesis and _ are complimentary reactions. -
can be completed
either or _If done with oxygen present, approximately molecules of ATP are made from
each molecule of glucose. _ If done without oxygen being present, approximately molecules of ATP are made from
each molecule of glucose. _ Thus, the most efficient process occurs when
is present

are there any answer choices

the answer would be 3

your answer is "the 1950's"

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.