Want this question answered?
Perfect in one direction but often does not show.
yes chemical properties do change a substance physical properties just change the physical shape or look!!!
humans often cause change to systems in nature.
Depending on the size of the light and how it is used, a fluorescent light can have a lifespan of anywhere from 8,000 to 30,000 hours. Fluorescent lights tend to lose their brightness over time, so it is recommended to change the light bulb before it burns out completely.
constantly
John Henry Newman, British Clergyman, born 1801, died 1890
Change the oil filter every time you change the oil.
I change it every other oil change.
It is possible for a weekly cycle to change because it is not constant. A weekly cycle is often changed by a member of management and is often done to better the business.
whenever you change the oil
I recommend you change it every 75,000 miles.
oil should be changed every 3 months or 3,000 miles which ever comes first
Depending on the model of car, the oil should be changed every 5,000-6,000 kilometres or 3 months, which ever comes first.
Ours are changed at 10,000 miles (per Ryder)
The Mercedes dealership just changed mine and they say it's done ever year or 10,000 miles which ever comes first.
we never change ours unless there is anything wrong with it
it should be changed every 100,000 miles