Which of the following statements is true about the structure of an atom? A
Although the atomic nucleus is equal in volume to the electron cloud, it has much less mass.
B
Although the atomic nucleus contains most of the mass of the atom, it has none of the atom's
electric charge.
Although the atomic nucleus contains very little of the volume of the atom, it contains most of
the mass of the atom.
D
Although the atomic nucleus contains all of the atom's electric charge, most of the atom's mass
is in the electron cloud.

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explanation:

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.