The Coriolis effect, which causes moving objects (like winds and ocean currents) to deflect from a straight path, is a direct result of which Earth phenomenon?

The correct answer to the question "The Coriolis effect, which causes moving objects (like winds and ocean currents) to deflect from a straight path, is a direct result of which Earth phenomenon?" is Option C: The Earth's rotation on its axis.

The other options — A) The Earth's elliptical orbit around the Sun, B) Variations in solar radiation intensity, D) Gravitational pull from the Moon — are incorrect for this GED Exam Prep question. As explained above: The Coriolis effect is caused by the Earth's rotation. As the Earth spins, points at different latitudes move at different speeds, causing a deflection in the path of moving fluids like air and water.