It’s 4, I’m on Plato but I literally just learned about all the ancient civilizations it’s the same thing
So, imagine you had some substance in a bowl. The bowl has a little wall going through the middle, with no openings or anything.
On one side of the wall, there are 100 molecules of the supstance. On the other, there are 10 molecules.
Now, imagine that you make an opening in that little wall that separates the substance into two parts.
Normally, the 100 molecules would start pouring into the part with 10 molecules, or “go down the concentration gradient”, which means going from the part with higher concentration into lower until they are equal.
Going /against/ the concentration gradient is just the opposite — if the 10 molecules went into the side with 100, which takes energy to do.
Answer:
The Truman Doctrine was informally extended to become the basis of American Cold War policy throughout Europe and around the world. It shifted American foreign policy toward the Soviet Union from an anti-fascist alliance to a policy of containment of Soviet expansion as advocated by diplomat George Kennan.
Explanation:
<span>Labor shortages discouraged many colonies from turning away potential colonists
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Social organization, Shelter, Farming, Technology, and Clothing