apes ch15

100 ppm is equal to .01%. How many ppm is 1%

10,000

how much louder 50 db than 30 db

100 times

lethal dose concept refers to the dose of a toxin at which

a specified percentage of a population dies

effect of a certain chemical on an individual depends on the concentration of this chemical

dose response

What is the major source of chronic heat pollution in water systems

electric power plants

all of following are true for white asbestos except

is extremely expensive to remove from old buildings

Which of the following is true about Electromagnetic fields (EMF)

magnetic fields generated by household appliances drop off sharply just a few meters away from the source

wild leopard frog's hermaphroditism

male and female reproductive organs in the same frog

Dioxin doesnt have

nitrogen

Using oil pollution as example:____is point source, and _____is area source

oil tanker spill; engine oil leak

toxic means

poisonous

Synthetic organic compounds are used in all of the following except:

synthetic organic compounds are used in all of the above

explain ecological gradient in the sense of environmental health and toxicology

the change in vegetation with distance from a pollution source

Biomagnification is all except

the development of tolerance to a pesticide or toxin

Synergism

the interaction of different substances such that the effect combined is greater than sum of separte effects

The interaction of different substances where the combined effects is greater than sum of separate substances

B. Synergism

This release from Lake Nyos, Africa killed many ppl and animals

Carbon Dioxide

Body burden is

accumulation of heavy metals in the body

NOT pollution point source

air pollution from automobile exhaust

all of the following are sources of particulates except

all of the above are sources of particulate matter

accumulation of a substance in living tissue as it moves through the food web

biomagnification

The content of heavy metals in humans

body burden