<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.
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Answer:
Local Mean Time is the Mean Solar Time for a specific location on Earth. It is the same for all locations that share the same longitude.
Explanation:
<h2>
BRAINLIEST PLEASE</h2>
CARRY ON LEARNING
When observational data are being collected, the observer’s
presence may cause a person to behave differently, a phenomenon known as reactivity.
<span>
To add, </span>reactivity<span> <span>is a
phenomenon that occurs when individuals alter their performance or behavior due
to the awareness that they are being observed. The change may be positive or
negative, and depends on the situation.</span></span>
