What is one of the consequences of animal carcasses and garbage in flooded areas?

The presence of animal carcasses and garbage in flooded areas can lead to serious public health risks, as these materials serve as breeding grounds for various germs and vectors, particularly mosquitoes. When organic matter, like animal remains, decomposes in standing water, it can emit odors that attract insects and provide an environment for pathogens to thrive. This results in an increased likelihood of vector-borne diseases, such as West Nile virus and Zika virus, spreading due to the proliferation of mosquito populations. Additionally, decomposing organic matter can contaminate the water, further exacerbating health risks for communities relying on that water source.

The other options do not accurately reflect the consequences of carcasses and garbage in flood-affected areas. Improved water quality, restoration of ecosystem balance, and increased agricultural productivity are all unlikely outcomes in such scenarios. Instead, the negative impacts on human health and the environment are primary concerns in these situations.