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.
Something that could cause someone to use social media may be the excitement of being in contact with different people around the world, or seeing funny memes, or videos, but cyber bullying can cause many to become depressed, people can be ruthless and bully one for their appearance, race, sexual orientation, religion, financial state, clothes, disabilities, etc.
The correct answer is D. Your muscles are burning. If you are experiencing any of the other 3 choices, either you probably have asthma, or you just held your breath during sprints.
Glands produce and release substances that perform specific functions in the body. the adrenal gland releases cortisol that helps you deal with stress, such as adrenaline when you’re doing something that gives you high stress or going through something shocking/ traumatizing. The thyroid gland releases hormones that control your metabolism
ER=Emergency Room. V/S=Vital Signs. Hope this helps :)