Paragraph explaining the influence that katabatic winds has on location of settlement and farms activities?

Since the katabatic winds are descending, they tend to have a low relative humidity, which desiccates the region. Other regions may have a similar but lesser effect, leading to "blue ice" areas where the snow is removed and the surface ice sublimates, but is replenished by glacier flow from upstream.

it sounds like either a or c

these include the fossil fuels, oil, natural gas, and coal and nuclear energy. hope this ! ^.^

-ella