The surface of earth is a thin, solid crust enclosing a molten core of lava. when the core moves, it disturbs the crust at specific locations, which causes earthquakes. how is an earthquake felt on the crust?

The best answer from the answer choices below to the question: How is an eartquake felt on the crust, would be: B: Up-down, or sideways wave-like shaking motion.

Explanation:

The Earth´s crust, the thin layer that separates us from the molten lava near to the Earth´s core, moves almost constantly due to changes in the layer of lava. This movement, which causes sliding motions in the tectonic plates, which are part of the crust where we stand, will also cause shakes that we know as earthquakes. These earthquakes, which are basically the movement of these tectonic plates, will usually be felt by us either as if jumping up and down in a bed, or as if being shaken side to side like on a wave of the ocean. Thus, the answer being B.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.