What is the ratio of extremely low-income housing to the number of families who needs it? Has this ratio increased or decreased over the years?

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between

In what region did the industrial revolution began