Answer:
A
Explanation:
Pollution is and can be poisonous to some environment and to organism. It also harms the thing in that environment.
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:
Try to bring it up with another adult you can trust. Or if you can drive, you can go to the doctor and get it diagnosed for yourself.
Explanation:
I believe it can result in permanent brain damage
The prevalence of HIV infections remained the same during the year of 1997
