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Enviormental Science

QuestionAnswer
interfere with the endocrine (hormone)system Endocrine Disruptors
Cause Cancer Carcinogens
Cause DNA mutations Mutagens
Cause birth defects Teratogens
assault the nervous system Neurotoxins
Overactivate the immune system Allergens
airborne transport of pestisides Pesticide Drift
Oceans make up how much of total water? 97%
Glaciers make up ____ of total drinkable water. 2.5%
a highly toxic, colorless, undetectable radioactive gas Radon
Four types of enviormental hazards, and examplse Physical, Chemical, Biological, Cultural
the degree of harm a chemical substance can cause Toxicity
any toxic or poisonous agent toxicant
Used in plastics, causes birth defects in mice Bisphenol-A
"plasticizer" -Soften plastics -Enhance Fragrances -Banned in Europe Pthalates
Toxicants build up in animal Tissues Bioaccumulation
Toxicants concentrate in top predators Biomagnification
Measures how much effect a toxicant produces at different doses Dose-Response Analysis
the amount of toxicant the test animal recieves Dose
the type or magnitude of negative effects Response
the plot of the dose given against the response -lethal doses (LD50) -effective doses (ED50) -Threshold Level Dose-response curve
high exposure for short periods of time to a hazard Acute exposure
low exposure for long periods of time to a hazard Chronic Exposure
interactive impacts that are more than or different from the simple sum of their consistuent effects Synergistic Effects
the probability that some harmful outcome will result from a given action, event, or substance Risk
Created by: 637638111
Popular Earth Science sets

 

 



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