1 Hepatitis A, B, and C are the most common viral forms of hepatitis and are the primary focus of this report. 2  Hepatitis D and E are less common hepatitis viruses. 3  Hepatitis D is a serious form of hepatitis that can be chronic. 4  It is associated with hepatitis B because the D virus relies on the B virus to replicate.
Hydrology is the study of water. Water is one of our most important natural resources. Without it, there would be no life on earth. The supply of water available for our use is limited by nature. Although there is plenty of water on earth, it is not always in the right place, at the right time and of the right quality.
Meteorology, climatology, atmospheric physics, and atmospheric chemistry are sub-disciplines of the atmospheric sciences. Meteorology and hydrology compose the interdisciplinary field of hydrometeorology. Interactions between Earth's atmosphere and the oceans are part of coupled ocean-atmosphere studies.eather forecasting is the application of science and technology to predict the state of the atmosphere for a future time and a given location. Human beings have attempted to predict the weather informally for millennia, and formally since at least the 19th century.