<span>The political environment of North and south America were affected by the rise of personalist leaders, the revival of Native American resistance and immigration that time. The nations like U.S., Brazil and Argentina experienced hardships in managing themselves under new constitutions. </span>
The option that best explains how Roosevelt modeled his New Deal programs after Progressive reforms would be "<span>He designed programs that strictly regulated big businesses and kept industries from monopolistic influences," since his main goal was to employ as many people as possible--not to protect the elite. </span>
Carbon dating can help determine the age at which the object is. This has helped scientist determine Early Earth. Although carbon dating can only date back not that long, scientists also use argon and uranium dating.