AND ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | EXAM
ALREADY GRADED A+ | LATEST EXAM VERSION
state legislation governing the use of chemicals in water primarily falls under the
guidance of - CORRECT ANSWER - the washington state department of
agriculture (WSDA)
All pesticide formulations labeled for application onto or into water to control pest
on or in the water are designated state - CORRECT ANSWER - restricted use
pesticide
general use pesticides that are exempt from the restricted used designation if that
are labeled - CORRECT ANSWER - solely for the following uses: swimming
pools, impounded ornamental pools or fountains ( no inlet or outlet and having an
impermeable barrier), aquariums, humidifiers, cooling towers or disinfectants
only pesticides labeled for aquatic uses - CORRECT ANSWER - may be used for
aquatic applications
under washington state surface water quality standards with a few exceptions it is
illegal to - CORRECT ANSWER - place any pesticide in water unless permission
for application has been granted by ecology
which permit must you obtain from the department of ecology to applying in water
- CORRECT ANSWER - national pollutant discharge elimination system permit
,who must you contact if you use Gambia for mosquito control, grass carp for weed
control, or when wildlife or inland fish might be in jeopardy - CORRECT
ANSWER - Washington Department of Fish and Wildlife
who to contact if endangered species or their habitats fall within the proposed
application site - CORRECT ANSWER - washington department of natural
resources
who might require special shoreline development permit under the authority of the
Shoreline management Act - CORRECT ANSWER - local or city planning
agencies
which type of fish is more susceptible to copper sulfate applications for algae
control - CORRECT ANSWER - trout
what chemicals are highly toxic to shrimp, crabs and fish - CORRECT ANSWER
- acrolein and xylene
what is the most vulnerable stage of a fish life - CORRECT ANSWER - fry (
newly hatched fish)
what treated with ___ cannot be used for watering,livestock,irrigation,domestic
uses or crop spray diluents for set period of time - CORRECT ANSWER -
endothall
swimmers itch - CORRECT ANSWER - pesticide is usually blamed for this but it
is caused by a parasite associated with snails and water birds
, a reduction in cover sometimes - CORRECT ANSWER - causes more of the
smaller fish to become prey to the larger fish, benefiting both populations
most predatory game fish do not uses - CORRECT ANSWER - areas of dense
aquatic vegetation for sparing and plant removal doesn't reduce their chances for
survival
first link in the aquatic food chains - CORRECT ANSWER - algae and flowering
plants
removal of what lowers the basic productivity of an aquatic ecosystem -
CORRECT ANSWER - aquatic plants or algae
what do dead plants do - CORRECT ANSWER - they become organic matter for
microorganisms and no longer produce oxygen
how to avoid low oxygen conditions - CORRECT ANSWER - only treat only a
part of a weed infested area at at time giving fish an opportunity to move to
untreated water
typical aquatic invertebrates - CORRECT ANSWER - worms, leeches, shrimp,
scuds, water fleas, insect larvae, snails and clams
increased amounts of decaying plant material from an herbicide application may
significantly increase - CORRECT ANSWER - invertebrate populations that feed
on organic matter