This is an attempt to help you visualise how big an area one acre is. 1  An acre measures an area of land and is about 70 yards by 70 yards, which means about 4,900 square yards (or roughly 44,000 square feet).
Alkaline diet. Alkaline diet (also known as the alkaline ash diet, alkaline acid diet, acid ash diet, and the acid alkaline diet) describes a group of loosely related diets based on the incorrect belief that certain foods can affect the acidity (pH) of the body and can therefore be used to treat or prevent disease.
The definition of alkaline is any substance having a base pH higher than 7. Certain types of food (such as broccoli) are examples of something alkaline because their pH is higher than 7.