Exam 9: The Hydrosphere

Clay is both ________ and ________.

Glaciers comprise about two percent of the total moisture on Earth.

The reason land surfaces do not flood and oceans do not dry up as a result of imbalances in the hydrologic cycle is a process called ________.

Europe's longest river is the ________.

Virtually all underground water originates as precipitation.

All of Earth's frozen water is called the ________.

Most freshwater lakes have but one surface outlet.

Since water and ice are composed of the same molecules, they remain at the same density regardless of temperature.

Most of the lakes in the north central United States exist as a result of ________.

Which ocean is surrounded by most of the world's major volcanoes?

Thawing permafrost sometimes degenerates into ________.

Which force supplies the energy for percolation?

The world's longest river is the ________.

Clay has a high ________ and low ________ because it has a great many, small interstices.

The average salinity of sea water is about 23 percent of its total weight.

Which of the following storage locations contains the most water?

Vertical uplift of water vapor in the atmosphere is known as ________.

By far, the lake with the greatest volume of freshwater is ________.

The deepest oceanic trenches are in which ocean?

Tides follow the moon in its revolution around Earth.