Hurry, ! will mark as brainliest if given good answer!
what does khanna suggest we need to invest in to address the economic disparity within the same megacities and why?

The correct answer to this open question is the following.

We are talking about Parag Khanna, a famous advisor on urbanization and author of many books on the subject. He suggests that it is necessary to invest in more and better infrastructure in order to reduce inequality in urban areas. He says that large Metropolis such as Mexico City and Sau Paulo, Brazil, grew in ten years what New York Gre in 30. In his opinion, that is the great challenge governments should address in the next years. How to reduce inequity. Radical disparities between the ones who have everything and the ones who are trying to make a living on a daily basis are causing violence and crime in large cities.

separation of church and state? not sure what you mean.