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World Geography Ch. 2 Test
Terms in this set (46)
______________ are small, irregularly shaped, planet-like objects found mainly between Mars and Jupiter.
Earth is part of a larger ______________ system that contains other planets, moons, and stars.
The ______________ is the part of Earth where life exists.
The only layer of Earth that supports life is the ______________.
What keeps the planets revolving around the sun?
Why would a geographer think understanding our solar system is important?
to know how it affects the Earth
Earth's lithosphere consists of what?
crust, continents, ocean basins
What three areas of Earth work together so life in the biosphere thrives?
people, animals, and plants
What classifies our solar system's four inner planets as terrestrial?
A solar system consists of a group of planets revolving around the same ______________.
The Earth's ________, which is composed of 78 percent nitrogen, reaches over 348 miles (560 km) from the surface of the Earth.
What planets comprise the solar system and where are they located?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Landforms are natural features at the surface of the Earth's uppermost layer, known as the ________.
Earth's surface is made up of 70 percent ______________ and 30 percent ______________.
A continental shelf is an underwater extension of a ______________ ______________.
The ________ includes all liquid and frozen surface water, ground water, and water vapor.
Next to Earth's outer core is a thick layer of hot, dense rock called the ______________.
______________ is an external force that is constantly changing the surface of Earth.
______________ is the physical process in which heavy oceanic plates slide under continental plates.
The three layers of Earth are?
core, mantle, crust
The Andes Mountains were created by the forces of ______________.
Which internal process leads to earthquakes in places like California?
A sudden earthquake as bent tectonic plates release tension is the result of ______________.
Of Earth's three structural layers, the hottest is which?
Scientists think that Pangaea separated due to what?
Which of Earth's layers is thickest?
Surrounding the inner core of Earth is another band also composed of iron and nickel called the ________.
Wind and water movements, which are external forces that change the Earth's surface, involve two processes ________ and erosion.
What are moraines?
rocky piled of debris left by glaciers
The Grand Canyon was slowly created by what kind of external force?
The total amount of ______________ on Earth does not change, but it is constantly moving.
Of all of Earth's water, ______________ percent is salt water.
______________ are a source of freshwater.
lakes, streams, rivers, glaciers, ice caps, underground
What provides the energy that drives the water cycle?
Desalination technology has been developed to resolve the problem of scarcity of ______________.
Earth's oceans are one huge, ______________ body of water.
Why is most of Earth's freshwater supply not available for consumption?
trapped in glaciers and ice caps
What does the expression "This year's rain is last year's snow" refer to?
amount of water on Earth doesn't change
The sun activates the water cycle by ______________ water from the surfaces of bodies of water.
Most of Earth's freshwater is in ______________ ice caps.
How does the sun drive the water cycle?
heat begins the process
Where is Earth's freshwater supply located?
underground and aquifers
How does humidity affect the movement of water in the water cycle?
The process of ________ occurs when water vapor in the air becomes cold and changes back into liquid, forming clouds.
More than two thirds of the Earth's freshwater is frozen as ________ and ice caps.
Describe the water cycle. Explain the process by which the water cycle occurs.
The water cycle shows the continuous movement of water within the Earth and atmosphere. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
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