Astudent placed a stack of rocks on a ramp. she added clumps of soil rooted
with live grass. using a garden hose, she then applied a steady spray of water
that soaked into the soil, making it heavier. what does the student's
experiment model?

The student's experiment is modeled after mass wasting, which is also known as mass movement or slope movement. One of the factors of mass wasting is gravity. The water from the hose weighs down the soil and causes the clumps of soil to move downward through the stack of rocks.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

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