Check the driver's side headlight relay, it's in the fuse panel under the hood. If that is ok then you most likely have a wiring problem.
Assuming no issues they are replaced after every race.
If the night running lights have failed the bulbs should be checked. Find the bulb housings and remove the parts. After the bulbs are replaced check the lights.
bulbs
i am annoyed at james' cavalier attitude about going to church every Sunday.
If the flower blooms in the Spring, the bulbs should be separated in the Fall. However, this does not need to be done every year. It is recommended that bulbs are dug up and separated every 3 or 4 years. If the bulbs are growing short or unevenly, it is time to dig up the bulbs and separate them.
There are a huge variety of different bulbs powers offered at Light Bulbs Direct. They have lightbulbs designed for nearly every kind of wattage desirable.
Bulbs come up every year if you only plant them once, seeds you have to re- plant. So if they are seeds, then yes. If they are bulbs, no.
The human skin is not replaced every 40 days. It is believed that the skin is replaced on average every 35 days.
T5 bulbs technically will last for about 20 000 hours. That's over 2 years if they were on continuously. However, if you are using them for an aquarium, they should be replaced every 10-12 months.
CFL bulbs use 75 percent less energy than incandescent bulbs, and lighting your home is about 20 percent of your energy use. If every home in America replaced just one standard bulb with a CFL, it would reduce greenhouse gas emissions equal to that of about 800,000 cars.
i would replace them every year or so just to keep up on maintence and avoid malfunction in the heater. see the owners manual for more info on the heater.
It is $1.17