Why are theories of special creation and spontaneous generation not accepted?

The theory of spontaneous generation stated that:

Who disproved the theory of spontaneous generation?

Why are leaves generally green ?

What do you mean by theory of spontaneous creation?

Write the physiological reason,why a woman generally cannot conceive a child after 50 years of age.

Why are two ends of a long bridge generally kept on trolley?

According to collision theory of chemical reactions, rate of a reaction depends upon collision frequency and fraction of effective collisions. The rate of a reaction generally increases with rise in temperature mainly because of increase in number of effective collisions. Arrhenius proposed a quantitative relation between rate constant and temperature as k= Ae^(-E_a//Rt) where E_a is activation energy. It is equal to the difference between threshold energy and average kinetic energy of reacting molecules. Which of the following plot will be linear ?

Why are antigens called antibody-generating chemicals ?

Why are antigens called antibodies generating chemicals ?