What product is missing from the grid 4 6 9 14 39

Pleas give me brief explanation about deterministic model in advanced hydrology

Why is wilhem wundt considered the "father of psychology"?

Select the correct answer. what was edwin hubble's contribution to the field of astronomy? a. he discovered variable stars. b. he proved that the heliocentric model accurately described our solar system. c. he found a relationship between the period luminosity and distance of stars. d. he proved that the universe is finite. e. he discovered that the universe was expanding.