Question

Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis?
the L-D reaction needs CO2 and light energy and the L-IND reaction needs water and O2
the L-D reaction requires light energy and water and the L-IND reaction requires ATP, NADPH and CO2
the L-D reaction can only occur during daylight and the L-IND reaction can only occur during the night
the L-D reaction needs water and CO2 and the L-IND reaction needs CO2 and light