Which one do you need answered?
Answer: Air Quality Index
Explanation:
An air quality index can be define as the index which is introduced by the U.S Environmental Protection Agency. It gives idea about how clean or polluted the air is. It helps in forecasting of the air pollution. The elevation in the levels of the AQIs indicates that public is at high risk of respiratory diseases associated with the air pollution.
There are several reasons the end of WWII was the beginning of a new era. Many countries in Africa and Asia gained independence from their colonial overlords. Two super powers emerged from the war, the USA and the USSR. The Cold War began and the American economy boomed.
Answer:
When the air moves from the windward to the leeward side, that is when the air moves downward, it becomes warm very rapidly and loses all of its moisture content, and thereby becomes dry. This results in the formation of a very high kind of wind which is commonly known as Chinook (or Foehn) winds. This type of wind has a higher temperature and occurs when high mountain ranges are oriented perpendicular to the direction of prevailing winds. For example, the Sierra Nevadas occurring in North America.
