The battle of ia drang valleygulf of tonkintet offensive showed americans the vietnam war was not nearly over as the government had suggested.

The affirmation is correct.

The Tet Offensive was the turning point in the Vietnam War. The number of defeats during this war is terrible. It was one of the bloodiest wars in history, and one that took a particularly high toll of civilian lives:

Also, the country was devastated by years of chemical warfare. Billions of dollars were wasted. Thousands of acres of forest were destroyed. For Vietnamese, it meant generations of deformed babies, miscarriages, cancers and all manner of illnesses.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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