1.
How often should you check your oil?

I generally recommend checking your car's oil at least once a month, if not more frequently. Your oil probably only needs to be changed between two and four times per year, which means that if you only rely on oil changes, you could have an unchecked issue for months before it's fixed.

yes.

an illinois concealed carry license (ccl) is required to conceal carry a firearm in illinois. the license permits the licensee to carry a concealed loaded or unloaded handgun on his or her person or within a vehicle.

in moral and political philosophy, the social contract is a theory or model that originated during the age of enlightenment and usually concerns the legitimacy of the authority of the state over the individual.

explanation:

social status of early civilizations was based primarily on economic power.- true ( first choice)