APES unit 8
all of the following are hazardus execpt
food scraps
a local group had to sample in a differnt time frame how might this affect results
water sampled later in the day might be warmer having lower oxygen levels
All of the following are used to deal with the side effects of euthophication except
adding nitrates
Eutrophication results in the death of trout and other fish as a result of
asphyxiation from lack of oxygen
which of the following human health issues is linked to exposure to polluntant released during the incineration of plastic waste
asthma
Some toxic compounds are ingested and retained in the tissues. These pollutants pose special risks to humans and other organisms high on the food chain because of which process?
biomagnificatio
describes the action of an endocrine disruptor
blocks the receptor protien binding site of a hormone
effects the intestines and spread through contamination of water and food
cholera
route for mercury entering the oceanic food webs
coal burning, deposition, oceam, plankton, fish
which of thr following federal laws specifically deals with the cleanup of abandoned hazordus waste sites
comprhensive environmental rsponsibility compensation and liability act
which statements about ozone is true
contact with ozonce can be injurus, ozone absorbs some wavelength and ultraviolet
factors that increase the spread of infectous disese except
exposure to nuerotoxins
describes a supporting ecological service provided by wetlands
habitat for wide variety of organisms
west nile virus is acquired by
infected mosquitoes
which is the primary method of waste disposal
landfilling
which describes why macroinvertebrate sampling can be used to asess the overall health of the stream
macroinvertebrates live inn an aquatic ecosyems for long enough to show the cronic effects of polluntants
poses a risk to humans who eat lots of fish
mercury
less LD50
more toxic
which is the greatest component by weight of municapal solid waste
paper
waste from which of the following is a nonprofit source pollution
runoff from agriculture
Many synthetic chemicals, such as PCBs, act as estrogen mimics. In an ecosystem, these persistent chemicals would have the greatest effect on which of the following?
secondary consumers
A laboratory study using rats showed a steady increase iin physical effects as the concentration of a toxic substance in their food. this suggests
the dose responsive relationship is linear