18) the susquehanna river, which runs through the states of new york, pennsylvania, and maryland,
received the title of --america's most endangered river - in 2005. one of the river problems
results from the large number of sewage overflow sites that are found along the course of the river.
these sewage overflow sites are a direct result of an increase in human population. what effect de
you predict this will have on the biodiversity on the river ecosystem?
a. the biodiversity will decrease due to an increase in pollution
b. the biodiversity of the river ecosystem will decrease due to climate change.
c. the biodiversity of the river ecosystem will increase due to an increase in fertilizer
d. there will be no change in biodiversity of the ecosystem because the sewage will run into the
ocean

The biodiversity will decrease due to an increase in pollution is the effect will have on the biodiversity on the river ecosystem.

Option A

Explanation:

Biodiversity is the actual collection of total amounts of flora and fauna present in a particular ecosystem. The river ecosystem consists of the aquatic plants, the aquatic animals like fishes,etc and even the surrounding land plants and animals, who utilize the river water for their living.

The inclusion of the polluted sewage of the surrounding area into the river directly mixes several chemicals to the water, which are potentially harmful for all the animals living there. This leads to destruction of the flora and fauna of both water and lands surrounding them. This hampers the biodiversity of the water as well as surrounding land.  

what are the options?

heat a spark and oxygen