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.
RCRA is an acronym and it stands for the Resource Conservation and Recovery Act. According to the EPA, âthe term RCRA is often used interchangeably to refer to the law, regulations, and EPA policy and guidance.â They then break down that further: Law: This is the waste management program that Congress passed. It gave the EPA the authority to develop the RCRA program.