What is an enumerated power of congress?

for the past few months, seth has visited his elderly grandmother every weekend and her with chores and errands. he has come to think of himself as a person who is kind and to elders. as a source of self-knowledge, this is an example of

Eter lives in a beautiful region. peter and other residents of his region use water from the river that flows through their region. recently, mark industries decided to set up their chemical plant near that river. peter realized that the waste from the chemical plant would pollute the river. he decided to seek a legal ordinance that would restrict the use of land near that river for specific use only. which type of zoning will peter and his region?

Why is it necessary to obey social norms? write briefly.