(20 points + brainliest) what process must happen before this process depicted below? -- a )fermentation b) cellular respiration c) krebs cycle d) glycolysis

glycolysis takes place in cytoplasm and can occur without the presense of oxygen and is primary energy source of most organisms        

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.