Answer:
Intelligence can actually be affected by both environmental and genetic influences.
Answer:
Fecal contamination can arise from sources such as combined sewer overflows, leaking septic tanks, sewer malfunctions, contaminated storm drains, animal feedlots, and other sources. ... coli may be washed into creeks, rivers, streams, lakes, or ground water
Explanation:
B. Real wages
Real wages show the value of wages adjusted for inflation. Real wages are a guide to how living standards have changed.