Answer:
B.) an earthquake
Explanation:
earthquake, volcanoes, tsunamis and landslides are naturally occurring events that can rapidly change earth's surface
The double chain in the unsaturated fatty acid cause it to bent; unlike saturated fatty acid which has no double bond, is straight.
S waves are slower than P waves and they can only travel through solid rock. S waves move the particles it pushes through up and down or side to side (perpendicular to the motion of the S waves energy).
The alkali metals in group l of the periodic table all have a single electron in the outermost shell. These metals form covalent bonds with for example the halogens, which have 7 electrons in their outer shell.
When the alkali metal halide, such as KCl is dissolved in water, it dissociates into ions. The K atom loses the single electron, and therefore has a positive charge. In turn, the chloride atom gains the electron and becomes the negatively charged chloride ion.