Why is feedback an important aspect of the guidance adults provide to teens?

Explanation:

It is important because, without feedback, the teens would not know if what they are doing is correct, wrong, needs improvement, should be done a different way, etc. An individual needs to know these things in order to adjust their behavior/techniques and improve. Otherwise, the individual continues repeating the same process over and over again and getting the same results, and if these results are bad they will never get better and progress in life. That is why it is extremely important that adults give feedback to teens.

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made