Author Question: In 1957, Clear Lake in California was sprayed with DDT such that the water contained 0.02 ppm of ... (Read 32 times)

vHAUNG6011 · **on:** Aug 27, 2018

In 1957, Clear Lake in California was sprayed with DDT such that the water contained 0.02 ppm of DDT. After a period of time, large fish in the lake were found to have DDT levels as high as 2000 ppm.

Which of the following animals would be predicted to have DDT levels > 2000 ppm? A) algae
B) hummingbirds
C) small fish
D) eagles

Question 2

Wool and silk are examples of which type of naturally occurring polymer?

A) cellulose
B) polyesters
C) nucleic acids
D) proteins