Your answers are correct. A&C.
Answer:
the life of our city was to cold
Figure it out yourself. This is homework help, not ‘write my essay for me’
A "bad Nile" is a lack of water or too much water, so possible consequences include:
Famine (from crops dying)
Destruction of property (from flood waters)
and much more. However, this type of question normally references something in the text, so I suggest checking that section to see if a specific example was ever given.