Hello,
The two groups that headed west were the settelers from america and the natives. They headed there to one explore and two for the amount of free land and gold.
According to a source, osmoregulation is primarily accompanied by sodium and potassium pumps that works together with regulating the osmotic pressure within these organisms and fishes.
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Answer:
Recognizing that Fort Moultrie was vulnerable to a land assault, Anderson elected to abandon it for the more easily defensible Fort Sumter on December 26, 1860. South Carolina militia forces would seize the city's other forts shortly thereafter, leaving Fort Sumter as the lone federal outpost in Charleston.
Explanation:
Recognizing that Fort Moultrie was vulnerable to a land assault, Anderson elected to abandon it for the more easily defensible Fort Sumter on December 26, 1860. South Carolina militia forces would seize the city's other forts shortly thereafter, leaving Fort Sumter as the lone federal outpost in Charleston.
Harsh jungle environment
difficultly identifying the enemy
demoralization
there was a chemical used called agent orange, but it was used by the U.S. so i dont think it would be categorized as something that american soldiers faced.