Question 10 (1 point) Someone taking courses to develop better skills is improving their
a
b
human capital
physical capital
Tabor
opportunity costs
с C
Od

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.