When was the style of american blues developed?

a. colonial america
b. during the great depression
c. during the vietnam war
d. the early 20th century

The style of American blues was developed in the early 20th century. Correct D Blues is a music genre created by African Americans in the early 20th century, originally in the South. The name blues comes for "the blue devils,” which denoted intense visual hallucinations that can accompany severe alcohol withdrawal. Over time it was shortened to  “the blues,”.

i would expect light rain in pittsburgh throughout the following 24 to 48 hours. the lower/falling weights in urban areas toward the west demonstrate that a low weight framework is moving from west to east toward pittsburgh. low weight frameworks are ordinarily connected with precipitation. the way that you don't see a major drop in temperature in the more western urban areas demonstrates the low weight framework is moving with a warm front, so just light rain would be normal. substantial downpours or progressively vicious climate is just typically connected with chilly fronts, where the warm air is pushed up and over a cool front quickly. this quickly rising air (convection) is what gives you heavier torrential downpours, and other conceivably serious weather conditions.

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.