Answer:
C. 11%
Explanation:
I took this class as a Freshman and this is the number one thing I remember. Is because my teacher made fun of how small their country was compared to the U.S.
Human activity has a great impact on waterways. Decreased amounts of vegetation leads to erosion of water banks. Increased fertilizer and nutrients levels in water from agriculture, sewage, and industry lead to the formation of algal blooms and subsequent decrease in other aquatic organisms.
