Water Cycle and The Hydrosphere

An underground layer of rock or sediment that holds water is known as:

• A lake

• A watershed

• An aquifer

• A water cycle

How do geysers relate to other parts of the hydrosphere discussed in the lesson?

• They are part of groundwater systems and represent a unique interaction between the hydrosphere and geosphere

• They are part of the ocean system and only occur in marine environments

• They are man-made features designed to control flooding

• They are ancient features that no longer exist on modern Earth

What is a watershed?

• A place where rivers begin

• The land area that supplies water to a river system

• The area where a river meets the ocean

• A body of water surrounded by land

Which statement about the total amount of water on Earth is correct?

• The total amount of water on Earth is constantly increasing

• The total amount of water on Earth is constantly decreasing

• The total amount of water cycling through Earth's system has remained fairly constant for millions of years

• The total amount of water on Earth doubles every million years

What is the water table?

• A chart showing water distribution on Earth

• The upper level of the saturated zone in groundwater

• The surface of a lake or pond

• The area where fresh water meets salt water

What is an aquifer?

• A layer of rock that prevents water from passing through

• A layer of rock that holds water

• A machine that pumps water from wells

• The upper level of the saturated zone

All the land area that supplies water to a river system is called a/an ____________________.

• Watershed

• Delta

• Tributary

• Floodplain

What percentage of water on Earth is salt water?

• 30%

• 71%

• 50%

• 97%

What is a spring in the context of the hydrosphere?

• A coiled metal device that stores energy

• A place where groundwater naturally flows out onto the surface of the Earth

• A type of river that only flows during rainy seasons

• A man-made well used to extract water

How much of earth's surface is covered by water?

• 30%

• 71%

• 50%

• 29%