Which of the following quantities is inversely proportional to the gravitational pull between two objects? the sum of their masses the sum of their volumes the square of the distance that separates them the distance from their center to their surface

Option C, The square of the distance that separates them

Explanation:

The formula for gravitational pull between two objects is given by

Where

G = gravitational constant

m1 and m2 is the mass of the two objects

and r is the distance between the two objects

Thus, as visible from the equation,

Gravitational force "F" is directly proportional to mass of the bodies and inversely proportional to the square of the distance that separates them

Thus, option C is correct.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.