Which stage of photosynthesis involves an electron transport chain? light dependent process light independent process calvin cycle krebs cycle?

Apart of the periodic table is shown. a portion of the sixteenth and seventeenth columns of the periodic table is shown. column 16 reads eight oxygen, 16 sulfur, and 34 selenium. column 17 reads nine flourine, 17 chlorine, and 35 bromine. which of the following elements is less reactive than the others? bromine (br) oxygen (o) selenium (se) sulfur (s)

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil