<span>The absolute threshold is the lowest intensity required and the difference threshold is the just noticeable difference between two stimuli. These thresholds differ by person, but usually have are defined as being able to be detected fifty percent of the time.</span>
<span>Each branch serves a specific function in the government : Legislative - makes laws, Executive - enforces the laws, Judicial - intepret the laws. Each is separated and performed its function according to the US Constitution. There is a Check and Balance function built-in so each branch does not act over-power over the other branch. They are shared equal power and help keeps the US from being an anarchy state. </span>
<span>Every 2 years, drivers in San Francisco must acquire a "smog certificate” to affirm the vehicle’s emissions test results and submit it with their registration renewal.
</span>
The air is a major part of it and it blows it around
