Which factors have the greatest influence on the state ( solid or liquid ) of each of earths layers

If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

2polnis which of the following is an advantage of an in vitro experiment?me