Answer:
hi, here's the answer of your question
Tighten bolts on your engine to prevent oil leaks.
Replace cracked or worn hydraulic lines and fittings before they fail.
Outfit your engine with an oil tray or drip pan.
Create your own bilge sock out of oil absorbent pads to prevent oily water discharge.
hope this was helpful...
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Answer:
B. Case-Control
Explanation:
A case-control is a study that compares a group with an outcome of interest (cases) with a group who do not have the outcome (controls). This study aims to looks back retrospectively to compare how frequently the exposure to a risk factor is present in each group and with that to determine the relationship between that risk factor and the outcome.
So in this case, the cases are children with pervasive development disorder and the control is those without the disorders.
These studies are normally observational because no intervention is attempted.
They say that there would be no reason to have morals without a god, there is no proof about when life began, nor its purpose. There isn't any reason or way of how anything began either in their opinion.