Will mark as brainlestwhat is diffusion? a. the total number of molecules within a volume of gas b. the force created when gas molecules hit their container c. the mixing of gas molecules due to random motion d. the space occupied by gas molecules moving around

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.