Washington Pesticide Laws and Safety
Vocabulary Exam Questions and Answers
Graded A+
absorbtion - Correct answer-the movement of a chemical into plants, animals,
including humans, microorganisms, or soil
Acaricide - Correct answer-pesticide used to control mites, ticks, miticide is a type
of acaricide
Acetylcholine - Correct answer-primary chem responsible for transmission of
nerve stimuli across the synapse of 2 neurons or to the muscle
activated charcoal - Correct answer-charcoal which when finely ground absorbs
liquids and gasses
activator - Correct answer-an adjuvent added to a pesticide to increase its toxicity
active ingredient - Correct answer-the chemical or chemicals in products
responsible for pesticidal activity
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,acute effects - Correct answer-the harmful effects that occur from a single exposure
to a pesticide by any route of entry
acute toxicity - Correct answer-the capacity of a pesticide to cause injury from a
single exposure. LD 50 and LC 50 are common indicators of the degree of acute
toxicity.
adherence - Correct answer-the property of a substance to stick to a human surface
adjuvent - Correct answer-a substance added to a pesticide to improve its
effectiveness or safety, same as additive. EX: penetrants, spreader stickers, wetting
agents
adsorption - Correct answer-a process by which chemicals are held or bound to a
surface by physical or chemical attraction. clay and high organic soils tend to
adsorb pesticides.
adulterated pesticide - Correct answer-pesticide that does not conform to the
professed standard or quality as documented on its label or labeling.
Scott made it.
Aerosol - Correct answer-A material stored in a container under pressure. an
extremely fine mist is produced when material, dissolved in a liquid, is released
into the air from the pressurized container
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Agitation - Correct answer-process of stirring or mixing in a sprayer
air purifying respirators - Correct answer-a type of protection from pesticides that
uses physical and chemical filters to trap and remove contaminants as they pass
through the device before being breathed by the wearer. these may be powered or
non powered
Air supplying respirators - Correct answer-a type of protection from pesticides that
provides clean, uncontaminated air from an outside source
Algae - Correct answer-relatively simple plants that contain chlorophyll and are
photosynthetic
Algaecide (algicide) - Correct answer-a pesticide used to kill or inhibit algae
annual - Correct answer-a plant that completes its life cycle in one year
antagonism - Correct answer-the reduction of pesticide activity when two or more
different pesticides are mixed together.
antibiotics - Correct answer-a microorganism produced chemical that is toxic to
other microorganisms. EX pennicillin
Anticoagulant - Correct answer-chemical that prevents normal blood clotting. The
active ingredient in some rodenticides.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, Antidote - Correct answer-A practical treatment used to counteract the effects of
poisoning or some other poison in the body
Anti-siphoning device - Correct answer-a hose attachment designed to prevent the
back-flow into a water source. used to prevent the flow of pesticide mixes to spray
tanks.
Anti transpirant - Correct answer-a chemical applied to a plant to reduce the rate of
transpiration or water loss (plant sweat!)
Aquifer - Correct answer-a permeable zone of rock, sand, gravel, or limestone
below the earth's surface saturated with water
arachnid - Correct answer-a wingless arthropod with two body regions and four
pairs of jointed legs. Ex: spiders, ticks, mites
Arthropod - Correct answer-An invertebrate animal characterized by a jointed body
and limbs and usually a hard body covering that is molted at intervals: Ex - insects,
mites, crayfish
Atropine (Atropine Sulfate) - Correct answer-An antidote used to treat organo-
phosphates and carbomate poisoning
attractant - Correct answer-substance or device to lure insects or other pests to a
trap or poison bait
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Vocabulary Exam Questions and Answers
Graded A+
absorbtion - Correct answer-the movement of a chemical into plants, animals,
including humans, microorganisms, or soil
Acaricide - Correct answer-pesticide used to control mites, ticks, miticide is a type
of acaricide
Acetylcholine - Correct answer-primary chem responsible for transmission of
nerve stimuli across the synapse of 2 neurons or to the muscle
activated charcoal - Correct answer-charcoal which when finely ground absorbs
liquids and gasses
activator - Correct answer-an adjuvent added to a pesticide to increase its toxicity
active ingredient - Correct answer-the chemical or chemicals in products
responsible for pesticidal activity
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,acute effects - Correct answer-the harmful effects that occur from a single exposure
to a pesticide by any route of entry
acute toxicity - Correct answer-the capacity of a pesticide to cause injury from a
single exposure. LD 50 and LC 50 are common indicators of the degree of acute
toxicity.
adherence - Correct answer-the property of a substance to stick to a human surface
adjuvent - Correct answer-a substance added to a pesticide to improve its
effectiveness or safety, same as additive. EX: penetrants, spreader stickers, wetting
agents
adsorption - Correct answer-a process by which chemicals are held or bound to a
surface by physical or chemical attraction. clay and high organic soils tend to
adsorb pesticides.
adulterated pesticide - Correct answer-pesticide that does not conform to the
professed standard or quality as documented on its label or labeling.
Scott made it.
Aerosol - Correct answer-A material stored in a container under pressure. an
extremely fine mist is produced when material, dissolved in a liquid, is released
into the air from the pressurized container
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Agitation - Correct answer-process of stirring or mixing in a sprayer
air purifying respirators - Correct answer-a type of protection from pesticides that
uses physical and chemical filters to trap and remove contaminants as they pass
through the device before being breathed by the wearer. these may be powered or
non powered
Air supplying respirators - Correct answer-a type of protection from pesticides that
provides clean, uncontaminated air from an outside source
Algae - Correct answer-relatively simple plants that contain chlorophyll and are
photosynthetic
Algaecide (algicide) - Correct answer-a pesticide used to kill or inhibit algae
annual - Correct answer-a plant that completes its life cycle in one year
antagonism - Correct answer-the reduction of pesticide activity when two or more
different pesticides are mixed together.
antibiotics - Correct answer-a microorganism produced chemical that is toxic to
other microorganisms. EX pennicillin
Anticoagulant - Correct answer-chemical that prevents normal blood clotting. The
active ingredient in some rodenticides.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, Antidote - Correct answer-A practical treatment used to counteract the effects of
poisoning or some other poison in the body
Anti-siphoning device - Correct answer-a hose attachment designed to prevent the
back-flow into a water source. used to prevent the flow of pesticide mixes to spray
tanks.
Anti transpirant - Correct answer-a chemical applied to a plant to reduce the rate of
transpiration or water loss (plant sweat!)
Aquifer - Correct answer-a permeable zone of rock, sand, gravel, or limestone
below the earth's surface saturated with water
arachnid - Correct answer-a wingless arthropod with two body regions and four
pairs of jointed legs. Ex: spiders, ticks, mites
Arthropod - Correct answer-An invertebrate animal characterized by a jointed body
and limbs and usually a hard body covering that is molted at intervals: Ex - insects,
mites, crayfish
Atropine (Atropine Sulfate) - Correct answer-An antidote used to treat organo-
phosphates and carbomate poisoning
attractant - Correct answer-substance or device to lure insects or other pests to a
trap or poison bait
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
