Geotropism explains which of the following phenomena?

a water collects in rock crevices, freezes and expands, and shatters the rock.
b a seed is planted upside-down, but the roots still grow in the direction of gravity. c two tectonic plates move toward each other, collide, and form a mountain.
d after a natural disaster, all animal life disappears from the affected area.

The correct answer of the given question above would be option B. Geotropism or also known as Gravitopism explains this phenomena which is a seed is planted upside-down, but the roots still grow in the direction of gravity. Geotropism is the growth of the parts of plants with respect to the force of gravity. Hope this answer helps.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.