A frown is a simpler expression which most people instinctively know. It involves in the lips turning downward, and the furrowing of the brow. A grimace is usually characterized as an ugly, twisted expression...

Niger and Nigeria are two different countries located on the continent of Africa. Niger is a land locked country in West Africa. In comparison, Nigeria is a costal country in Africa. They are neighbors that...

Steel is an alloy, which means that it is created by mixing various different elements together. The primarily base element in steel is iron. Stainless Steel is a special type of steel. It has all the...

Biology is a field of natural science that deals with the study of all living things. This includes the study of life itself, as well as the structure, function, growth, evolution, distribution, identification...

The two terms Percentile and Percentage are actually interrelated. A percentage is a calculation that depicts a ratio of something out of a 100. A percentile is a measure that indicates the value below which a...