How do charged particles involved in inducing electromagnetic radiation get enough energy to reach the speed of light? A.
The interactions of the electric and magnetic fields carry energy that propels the particles forward at the speed of light.
B.
The electromagnetic field discharges energy and the particles absorb it.
C.
Since electric and magnetic fields cannot coexist in the same area, the particles gain energy each time the field switches from one to the other.
D.
They do not reach the speed of light. Although the electromagnetic field reaches the speed of light, the charged particles themselves do not.

the answer for this question would be d. glaciers

what school and grade?

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.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.