Mechanical weathering is also known as physical weathering. It's when wind and natural weathering is used.The grand canyon experienced a great amount of mechanical weathering over the years.
C- correct a mistaken view
The author is correcting the idea that Harriet Ida Pickens and Frances Wills were the first African American women to serve in the navy.
Poverty is defined as the scarcity or the lack of a certain amount of material, possession, or money. Poverty is a multifaceted concept, which may include social, economic, and political element.
