Regional and global pollution: DDT and ozone. But first, thoughts on David Battisti Historically, famines have not been caused by a lack of food! (See.
Rachel Carson, DDT, and air pollution. Interdisciplinary perspectives Natural sciences (biology, chemistry, etc.) Medical sciences (especially epidemiology,
Warm Up 1. What is a biotic factor? List 2 examples. 2. What is an abiotic factor? List 2 examples. 3. What is a food web?