Why Is Earth's Gravitational Field NOT Smooth

question 20

Multiple Choice

Why is Earth's gravitational field NOT smooth?

• A)Gravitational fields are never smooth due to changes in the shape of the planets.
• B)Earth is close to the Sun,which pulls on the gravitational field and causes it to be misshapen.
• C)The density of materials on Earth is not uniform and the surface contains changes in topography.
• D)The gravitational field is much lower for any area that is covered in water and thus is different over land versus water.

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