Based on the nature of the reactants in each of the equations below, which reaction at 25°C will occur at the fastest rate

Which position represents spring in the southern hemisphere? a) b) c) d)

Can someone me with 1 to 4 plz. fast

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.