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Erosion and Weathering

Name:______________________________
Across
IS A LAYER OF SOIL THAT DIFFERS IN IN COLOR AND TEXTURE FROM THE LAYERS ABOVE OR BELOW IT
EQUAL PARTS OF SAND, CLAY, AND SILT
ORGANISMS THAT BREAK DOWN THE REMAINING DEAD ORGANISMS AND DIGEST THEM
SAME PROCESSES THAT OPERATE TODAY OPERATED IN THE PAST
LOOSE, WEATHERED MATERIAL ON EARTH'S SURFACE
DIFFERENT YEAR FOR DIFFERENT CROPS
ROCK IS PHYSICALLY BROKEN DOWN
THE A HORIZON MADE UP OF DARK CUMBLY BROWN SOIL
IS ANYTHING IN THE ENVIRONMENTS THAT HUMANS USE
PROCESS THAT BREAKS DOWN ROCK AND OTHER SUBSTANCES
REFERS TO THE GRINDING AWAY OF ROCK BY ROCK PARTICLES
WHEN THE ICE MELTS IT WATER SINKS DEEPER INTO THE ROCK, THE REPEATING FREEZING AND THAWING CREATES ROCK BREAK
THE REMOVAL OF ROCK PARTICLES BY WIND, WATER, ICE, OR GRAVITY
Down
IS THE MANAGEMENT OF SOIL TO PREVENT ITS DESTRUCTION
AS PLANTS SHED LEAVES, THEY FORM A LOOSE LAYER
IS A DARK COLORED SUBSTANCE THAT FORMS AS PLANT AND ANIMAL REMAINS
IS THE PROCESS BY WHICH ROCKS BREAK DOWN THROUGH CHEMICAL CHANGES
BY 1930 ALMOST ALL OF THE GREAT PLAINS WAS BLOWN AWAY BY THE
IS A MEASURE OF HOW WELL THE SOIL SUPPORTS PLANT GROWTH
THE B HORIZON USUALLY CONSISTS OF CLAY
SOME ROCK WEATHERS MORE EASILY BECUSE IT IS FULL OF HOLES
IRON COMBINES WITH OXYGEN IN THE PRESENCE OF WATER IN A PROCESS
THICK MASS OF TOUGH ROOTS