Through the Air we breathe
My guess would be to weigh yourself before and after a workout then consume the equivalent of the amount you may have lost with water.
For example
Say you loose 2 pounds after a hour run. You should drink about 32oz to rehydrate yourself
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.