In 2006, three ski patrol members were killed at Mammoth Mountain ski resort after falling into a snow depression surrounding a volcanic fumarole and filled with cool CO 2 gas. High concentrations of CO 2 gas in soils can also damage or destroy vegetation, as is visible in several areas on Mammoth Mountain.
ID Control's USB Token is a portable end-user authentication token that can replace user name and password for workstation, website, VPN, file, email, network, file and/or disk access security. ID Control USB Token plugs into any standard USB port and can even run without any software. Since authentication products come in various form factors, the user selection process is based on ease of use and flexibility, especially when in remote locations.
Rating Newest Oldest. Best Answer: Control variable is something is an experiment that doesn't change. It is not what is being tested. It is used to validate results. For example, you want to test if plants grow better in red of blue light.ou need to give each plant the same amount of water at the same time and need to keep the temperature constant. You change the color of light. Your control variables are: amount of water, time of water, and temperature because they are always the same.