In the investigation " magnetic effects of current", when you moved the compass around the filed lines, they compass . A. Pointed in the direction of the field lines.
B. Pointed in the opposite direction of the field lines.
C. Pointed perpendicular to the direction of the field lines.
D. Pointed away from the direction of the field lines.

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.