Plant Growth Hormones

1: (b) Human urine, 2: (d) All of these, 3: (a) Growing apices, 4: (c) Auxin, 5: (d) GA 1 to more than GA 100, 6: (b) Gibberellins, 7: (b) Gibberellins, 8: (c) Cytokinin, 9: (c) Ethylene, 10: (a) Ethylene