You have a leak. Could be external in which case you would see a puddle or drip underneath the engine. Could also be internal which is more costly to repair but should be addressed as soon as possible. In any case have a trusted mechanic diagnose the problem soon.
Individuals must have their blood pressure checked every year. One should have a physical exam every five years, and one's cholesterol levels must be checked every five years as well.
Yes,an empty set is the subset of every set. The subset of an empty set is only an empty set itself.
No. An empty set is a subset of every set but it is not an element of every set.
Since invasive disease is usually signaled by high levels of hCG that don't go down after the pregnancy has ended, the woman's hCG levels will be checked every two weeks
diabetes
Every set contains the empty set. Every set is a subset of itself.
Every two years
Do you mean overheating? Is steam coming out? It could just be a bad thermostat, if so, replace it. Have you checked your coolant level? Have you changed your coolant? You may possibly need a new water pump (change the serpentine belt at the same time).
It isn't. The empty set is a subset - but not a proper subset - of the empty set.
Coolant is typically changed every 30,000 - 50,000 miles.
Brake linings should be checked every 3,000 miles.
The empty set!