Why are floods in urban areas particularly dangerous?
a. city buildings do not allow flood waters to recede
b. flood waters spread pollutants and diseases more rapidly.
c. flood waters permanently damage crop soils.
d. most cities are built in flood zones.

A and C are definitely not your answer.

Soils aren't really located in urban areas.

So I believe your best answer would be B.

Hope I helped. :)

Africans learned what the europeans wanted them to learn. instead of learning about african history and current information that could and would them they learned solely what europe wanted them to. and not everyone received the same education, some received better and others none.

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.