Hoovervilles and the economy. As the economic crash of the 1930s dragged on, more and more people were ruined. Delinquent taxes, drastically rising unemployment and mortgage foreclosures were heavy burdens to overcome. Those factors forced ordinary people to either move into Hoovervilles or become transients.
Carbon is the sixth most common element in the universe and the fourth most common element in the solar system. It is the second most common element in the human body after oxygen. About 18 percent of a person's body weight is due to carbon. The black color of smoke is caused by unburned specks of carbon.
Most contain hydrogen and many contain oxygen or other elements. See the Related Questions and Web Links. a compound made of carbon â¦ oxygen and hydrogen An organic compound is a member of a large class of solid, gaseous  or liquid chemical compounds in which the molecules contain carbon.