Answer:
For about 200 million years the Pacific Northwest region has been at an active plate boundary, specifically an ocean-continent convergent plate boundary with a subduction zone. Subduction has created most of the volcanoes and mountain ranges of the Northwest.Jul 16, 2013
Explanation:
Answer: Summary. Intrusive igneous rocks cool from magma slowly because they are buried beneath the surface, so they have large crystals. Extrusive igneous rocks cool from lava rapidly because they form at the surface, so they have small crystals. Texture reflects how an igneous rock formed.
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Explanation:
Answer:
erosion is caused by wind water and gravity
Explanation:
it's rocks or concrete breaking down very slowly it takes years
A clay that loses nearly all of its shear strength after being disturbed is called a(n) sensitive clay.
Clay is a material similar to natural earth but fine grain. The meaning of the word clay is "sticky". The slip is a clay in liquid suspension used as a binding agent, as enamel for stoneware and electrical insulators or slip sheets are used in decoration.Clays may be described as sensitive when the undisturbed strength is greater than the disturbed (remoulded) strength, where the remoulded material can behave as a fluid.
Sensitivity is defined as the ratio of the undisturbed shear strength and the disturbed shear strength.Clay soil has a thick and swooping composition. Blackland prairies have a unique characteristic of black and heavy clay soils because of the marine chalks, limestones, and shale that are found in its composition. When soils reach major rivers and tributaries its compositions changes into a more sandy soil
Learn about clay soil:
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