DDT. DDT was the first synthetic pesticide of the modern age. It promised much, but ultimately created widespread concern as an environmental hazard.
Chapter 21 Section 5 Environmentalism. DDT In 1966 a Long Island family discovered that the pesticide DDT was being used to control mosquitoes at a lake.
Ecological Problems. Biological Magnification Increase or concentration of a substance, such as the pesticide DDT, in a food chain.
Biodiversity Section #2: Biodiversity at Risk. Extinctions changes in Earth’s climate & ecosystems have caused the extinction of about ½ the species on.
Biomagnification Biology. When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir When we try to.
CONSERVATION ECOLOGY 1.
PROTECTING FOOD RESOURCES: PEST MANAGEMENT Organisms found in nature (such as spiders) control populations of most pest species as part of the earth’s.
Food Safety Fertilizers, Pesticides, Preservatives, and Bacteria.
Fossil evidence indicates that modern humans evolved in East Africa about 200,000 years ago During most of their existence they survived by hunting.
Rise of Chemistry and Biology YSU – Weapons of Mass Destruction.
1 1 Environmental Science Air Pollution Global climate change Stratospheric ozone depletion Urban air pollution Acid deposition Outdoor pollutants Indoor.
Chapter 2 Green Chemistry. GREEN CHEMISTRY DEFINITION Green Chemistry is the utilisation of a set of principles that reduces or eliminates the use or.
