The pH of a solution indicates the concentration of free H+ ions in solution on a negative log base 10 scale. Low pH (acidic) means high H+ concentration High pH (basic) means low H+ concentration.
Mistakes. 1  In the manga, Ravenpaw is shown with a slightly altered appearance from his description in the books. 2  He has been mistakenly called Ravepaw. 3  He was mistakenly mentioned with blue eyes.  He is mistakenly called a rogue by Sandstorm in A Clan in 1  Need. He is mistakenly called 'Ravenclaw' by Vicky.
Crow vs Raven. Crows and ravens are birds which are familiar to almost all. Though both these birds look similar, there are many differences between the two ranging from the physical features to behavior and habitat.The family of crows covers different species of birds like the magpies, ravens, and jays. Owing to the similarity in the appearance, many use the names of the birds wrongly.The first visible difference between a crow and a raven is the size. Ravens are usually bigger in size than the crows.When a raven can be up to 64 cm in height, a crowâs height ranges up to 46 cm. Similarly, the wings, feet, and beak sizes also differ.hough both these birds look similar, there are many differences between the two ranging from the physical features to behavior and habitat. The family of crows covers different species of birds like the magpies, ravens, and jays. Owing to the similarity in the appearance, many use the names of the birds wrongly.