The gravitational pull between the earth and the moon produces __________?

The gravitational pull between the earth and the moon produces __________?

• A. Two bulges on ocean surfaces
• B. Waves
• C. Currents
• D. Tides

Answer: (A)

Gravitational forces from the Moon pull on Earth’s oceans, creating distinct bulges. One bulge forms on the side of Earth closest to the Moon where gravity is strongest, while a second bulge appears on the far side due to inertia and the way the Earth–Moon system accelerates. As Earth spins, these bulges move under different coastlines, producing the rise and fall of sea level known as tides. Waves and currents are related ocean processes, but they aren’t the direct result of pulling on the ocean in two opposite places like these tidal bulges.

Gravitational forces from the Moon pull on Earth’s oceans, creating distinct bulges. One bulge forms on the side of Earth closest to the Moon where gravity is strongest, while a second bulge appears on the far side due to inertia and the way the Earth–Moon system accelerates. As Earth spins, these bulges move under different coastlines, producing the rise and fall of sea level known as tides. Waves and currents are related ocean processes, but they aren’t the direct result of pulling on the ocean in two opposite places like these tidal bulges.