Us Symbols6.Room2.3.Key
Birds of the Bay There are many birds that spent at least part of the year near the Chesapeake Bay.
Pesticide, Bioaccumulation and Biomagnification. A. Pesticides A1. Pesticides are chemicals that kill pests A2. 2.3 million tonnes of pesticides used.
Pesticide, Bioaccumulation and Biomagnification. Brainstorm the pros and cons of pesticide on whiteboard.
