In passage 2, how does the phrase "the city's tumult," (line 3) contrast with the author's observations of the doves?.

Technological solutions have good bad effects. what is one bad effect of spraying a chemical pesticide on crops

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present