Swamps have excess nutrients in contaminated waters can spur microbial growth and cause harmful algal blooms, which feed mosquito larvae.
The geographic feature was most responsible for the presence of mosquito borne diseases is swamps.
Swamps are wetlands where water is collected in one area, and over the period plants, and trees around start to decay.
Swamps are Eco friendly in nature as they allowed the area to flourish with fauna and flora.
One of the disadvantages of swamps is that it is responsible for mosquito-borne diseases.
Mosquito-borne diseases like Chikungunya virus, dengue, Zika virus and malaria are harmful to humans.
Thus option C is the correct answer.
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