What kind of work does Stephen do?

Why does starch have a low respiration rate? What are the types of waves in the electromagnetic spectrum? What is Hooke's smallest most basic unit of life? Why does removing the top of a plant cause more flowers to form? Does differentiation occur when cells begin to take forms and reproduce at various rates? How many millimeters are in 1.92 cm? How does sea floor rocks farther from ridge older than rocks closer to the ridge support the idea of seafloor spreading? What is patsa made of? A diver dives off a diving board which is 5m above the surface of a swimming pool Assuming that all of the diver's GPE is converted into KE calculate their speed when they hit the water? How large is 40 kilograms? Where can one purchase iron railings? What is the solubility of barium sulfate in parts per million? What structure is protected by a root cap? How do you know that the earth is big? How many electrons can beryllium lend? What does AJ Ltd on gold ring mean? How is the central heating model not like an electric circuit? How many continents we have according the earth plates? Niagara falls is a good example of? What happens to the water and dissolved minerals after they move into the cortex?

What kind of work does Stephen do?