What Is Flood?
Flood occurs when water overflows or soaks land that is normally dry. It is a…
Climate Change and Drought
Drought occurs in areas of the world that normally get little or no rain. Climate…
The President and the Legislative Process
The modern American presidency was shaped in the first half of the twentieth century by…
What Causes Infection?
Infection occurs when germs (usually bacteria, but also viruses and fungi) get inside the body…
What Is Currency?
The term “currency” refers to a medium of exchange for goods and services in an…