Posted on April 2, 2010.
1.The sea lamprey and zebra mussels that are part of the Great Lakes ecosystem issues of these? A. Wetland loss
B. Invasive species
C. algae explosion
D. Point source pollution
2. Which of the following statements are most suffered from poisoning with DDT in the Great Lakes?
birds fish A. eat
B. large fish
C. small fish
D. tiny organisms
Most immigrants have helped build the economy
A. Use utilities
B. serve in the army
C. from new buisnesses
D. learn to speak English
neeed this.
1.B
2.A
3.C
I think