What was the era known as the dirty thirties

The Dust Bowl

Explanation:

The Dust Bowl (or Dirty Thirties)  lasted in the American praries from 1930 to 1936 (some areas suffered until 1940). This period is when severe drought and dust storms caused damage to agricultural areas.

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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the answer to your question is true

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