Answer:
examples 1 and 2 are examples of frustration
example 3 is an example of sympathy and greif
example 4 is an example of anger
Safety is having control of any incident to prevent from any further injury to happen.
First aid is taking immediate action in giving treatment to a victim of any sudden accident.
I believe the answer to your question will be true because with out the iron you can become anemic and becoming anemic will be bad for you.