I believe all of the anwers apply.
The 'fewer natural resources" is applicable assuming they are currently depleting their natural resources.
<span>Landslides refer to the process by which natural
forces move weathered rocks and soil from one place to another. This usually
occurs on a slope where the failure of materials results to the movement of
rock and soil. This debris is moved by the natural force of gravity which can
cause massive destructions in areas that are highly elevated. </span>
the answer is C because through common sense it makes sense.