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3.3 Earth's Spheres
Terms in this set (27)
A thin layer of relatively cool rock that forms Earth's outer skin both on dry land and in the ocean. (The outer part of the geosphere.)
A layer of very hot but mostly solid rock below the crust.
The part of Earth beneath the mantle; Earth's center
A large section of lithosphere that moves over Earth's surface.
A mountain, island, continent, or other feature that forms above and beneath the ocean's surface.
The depositing of eroded soil at a new location.
The conversion of a substance from a liquid to a gas.
The release of water vapor through the leaves of plants.
Water that returns from the atmosphere to Earth's surface.
A change in state from a gas to a liquid.
A layer of rock and soil that holds water underground.
Fresh water found underground.
made up of all the rocks and minerals on or below Earth's surface.
Divergent plate boundaries
areas where molten rock pushes plates apart
transform plate boundaries
areas where plates slip and grind alongside each other
convergent plate boundaries
areas where plates move toward each other
a gas made up of oxygen molecules that each have three oxygen atoms. It protects the biosphere from the sun's radiation.
How do greenhouse gases affect our environment?
carbon dioxide, methane, and other green house gases keep Earth warm enough to support life
the upper limit of fresh water stored underground
97.5 percent of Earth's water is ......
salt water in the oceans and salt lakes
2.5 percent of Earth's water is.....
fresh water with three quarters of it as ice
How much of Earth's fresh water can be used for drinking or watering crops?
Describe 2 human activities that can affect the water cycle.
Clearing plants from Earth's surface increases runoff, erosion, and evaporation, and decreases transpiration. Unrestrained use of fresh water for farming and industry depletes groundwater.
characteristics of the geosphere
contains the crust, mantle, and core
consists of rocks and minerals
plate tectonics in the mantle create various landforms that determine where different types of animals can live
characteristics of atmosphere
contains oxygen, ozone, and greenhouse gases
acts as a global sunscreen
keeps Earth warm enough to support life
characteristics of biosphere
contains the living or once-living organisms on Earth
gases used and expelled by organisms here affect the composition of gases in the atmosphere
characteristics of hydrosphere
contains all of Earth's water - salt water, fresh water, on Earth's surface, underground, and in the atmosphere
perpetuates water cycles through the lithosphere, biosphere, and atmosphere
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Earth Science: Geology, the Environment, and the Universe
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