Answer:
B
Explanation:
I'm pretty sure that's the answer because the others seem very odd for a population scale when a new pipe is inserted.
GRAPH d
The main impact of raw sewage will be an increase in nutrient concentrations. This will spur growth of algae and also increase the populations of the two primary algae grazers
I would say, depth.
Hope this helps!
C) DNA or RNA
Genetic material is found in both viruses and in living single-celled organisms, such as protozoans and bacteria.
40 miles/hour
(80 miles) / (2 hours)= 40 miles/ hour