A classmate begs me for answers to everything each and every single day. My problem is that I’m too nice and to avoid saying no I just don’t respond. I haven’t responded in about a few days but she hasn’t caught the memo yet. How do I tell her to stop asking me for answers in a nice way...

Which of these is not a criticism of the concentric zone model? it does not accurately describe cities after the rise of suburban development. it only applies to cities that grew after the development of the automobile. it assumes that inner-city areas will always be repurposed instead of abandoned. it places too much importance on the traditional central business district.