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It varies by state. Check with your state DMV for the information.
If you are an astronomer and your subject of observation is not Earth's sun, then yes observing at night is better.
There is a few ways to stay an animal. Staying an animal over night with testing.
I can give you several sentences.The observation tower loomed over the nearby buildings.You are under observation for your chest pain, and need to spend the night in hospital.This is your observation period; if you do well during the next few weeks, the manager will give you a raise.
Laws vary by state; night hunting is illegal in Alabama yet unrestricted in Alaska. For more information, refer to specific states' websites or read the article on High Tech Redneck Incorporated titled "A 50 State Guide - Is night vision legal to use for hunting in my State?"
effect of day and night interms of livelihood,health
its colder at night than it is during the day, so it feels colder at night.
No.
The book "In the Heat of the Night" was set in the state of Mississippi.
The star's position appears to shift slightly in the night sky during the year.
This question is too vague, and needs more information. What is meant by 'night-flow?'
Meaning depends on context and audience. For instance, you could make the observation that President Obama is black but this would be a pointless observation since most people already know it. In fact the observation is so obvious the president used it as a joke on a late night TV channel.So for an observation to be meaningful it needs to be pertinent, relevant, timely, precise and accurate.If we are trying to launch a vehicle into space and you note that the acceleration constant for the earth's gravity had changed by 1percent. This would be startling, timely, and maybe even alarming. If it turned out that the measurement was not repeatable the observation would be not be meaningful. It would probably just be annoying.For the most part in science, the most meaningful observations are repeatable.