The pressure gradient force causes air to flow from areas of relatively _________ pressure to areas of relatively __________ pressure.

The trade winds blow from the __________ in the Northern Hemisphere and __________ in the Southern Hemisphere.

Liquid water changes to a vapor via __________.

Lithogenous sediments include all of the following except __________.

Most of the deep sea trenches in the world’s ocean caused by subduction occur around the edge of the ____________ Ocean.

Hydrothermal vents and circulation are usually associated with ___________.

A nor’easter is similar to a hurricane in that both systems __________.

Estuaries formed __________.

Hot spots are associated with __________.

Coastlines in passive continental margins may be characterized by ___________.