Answer: A steam engine is an external combustion engine (ECE) in which the fuel is combusted outside of the engine, unlike an internal combustion engine (ICE) in which fuel is combusted inside the engine. ECEs have a lower thermal efficiency, but carbon monoxide production is more readily regulated.
Answer:
c. While narcolepsy is a REM stage disorder, insomnia causes people to have difficulty falling asleep when they want to
Explanation:
They are different disorders, The narcolepsy is a mental disorder, in which the brain needs to regulate the REM cycles, that is the reason why people with this disease turns long hours with daytime sleepiness. and during night they can not sleep.
Insomnia, in the other hand, is a sickness that it can be solved with some strategies like not taking coffee at night, set some schedules to sleep at the same time, etc.
Do they work you mean?? Different variations of the position of your hands hits different muscle parts. Like doing push-ups with your hands far apart hits more of the chest area. Doing them with your hands close hits more of your triceps. I personally like them close.
