March 31, 2015. A webcam is a small camera attached to a computer. They serve a variety of purposes, from taking still images to sending a live video over conference calls. Many laptops have a webcam built in to the computer screen, but external webcams are also sold. If you purchase an external webcam for use, you may also need to get a microphone if you plan on using the camera for either captured or live video.
Environmental Protection Agency: The US government agency founded to protect human health and to safeguard the natural environment--air, water, and land--upon which life depends.. The Environmental Protection Agency is known as the EPA.
The Administrator is nominated by the President of the United States and must be confirmed by a vote of the Senate. The office of Administrator of the Environmental Protection Agency was created in 1970 in legislation that created the Environmental Protection Agency. The EPA Administrator is customarily accorded Cabinet rank by the President and sits with the President, Vice President, and the 15 Cabinet Secretaries.