In the hypothesis testing approach of Jerzy Neyman and Egon Pearson, a null hypothesis is contrasted with an alternative hypothesis, and the two hypotheses are distinguished on the basis of data, with certain error rates. Proponents of each approach criticize the other approach.
In geography, relief refers to the highest and lowest elevation points in an area. Mountains and ridges are typically the highest elevation points, while valleys and other low-lying areas are the lowest. Relief is essential to understanding the topography of an area.
What Is The Rain Shadow Effect? Often times, mountains stand as barriers preventing precipitation from falling over certain areas. The Tibetan Plateau in China can be considerably arid due to the rain shadow effect it receives from the massive Himalayas rising nearby. Description Often times, mountains stand as barriers to clouds so as to prevent precipitation from falling on certain sides of them.