Natural gas made due to pressure and under buried layers of rock over millions of years ago
I would say true. I say this because there have been times where scientists find out that there are better ways of performing experiments, or found that certain materials work better for certain tasks. (Especially true in medicinal fields!)
Chronic jetlag can cause cognitive deficits that can be permanent. This happens because the normal circadian rhythm of the body is disrupted. The endogenous system of circadian timing in the body adapts slowly. This disturbance can impair the physical and psychological health of the person.
C is a combustion reaction
