As water moves down through the ground, what force is acting against it?

a. capillary action
b. saturation
c. gravity
d. permeability

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity