Answer:
Is selective.
Explanation:
The fact that attention is selective means that we can focus on something in particular and turn off all the other things that we perceive in an environment. This is helpful when we want to focus on one thing, like listen to our professor, so we do not pay attention to what is going on in the room like mates talking, someone chewing, the noise outside, etc.
Answer: I believe that it is not safe because if you were to say crush it up and snort it and you thought that is wasn't working so you did another and then maybe another then you might be taking more then what you where supposed to take in one setting.
Hope it makes since.
It is important for teens to eat well because they are growing and need energy and they need to stay healthy.
This can result in injury and punishment