What contributed to New York City's terrible pollution problems in the late 1800s? Choose all answers that are correct. pneumatic subway insufficient sanitary services horse and pig manure oil refineries

horse and pig manure

the insufficient sanitary services

Explanation:

The major contributors to New York City's terrible pollution problems in the late 1800s were horse and pig manure which littered the streets and also the insufficiency of the sanitary services to clean them up and keep the areas clean.

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barack obama

44th president of the united states