RHODE ISLAND PESTICIDE FINAL PAPER 2025/2026
QUESTIONS WITH ANSWERS GUARANTEE A+
✔✔Signal words - ✔✔Danger-poison: marked with skull and crossbones marked on
products that are highly toxic, Danger: highly toxic by at least one route of entry, these
products can cause severe eye damage or skin irritation, Warning: indicates product is
moderately toxic either orally or dermally, Caution: indicates the product is slightly toxic
either dermally or orally, causes slight eye and skin irritation.
✔✔Toxicity - ✔✔refers to the ability of pesticide to cause acute or chronic injury
✔✔Hazard - ✔✔potential for harm to occur because of the combination of the product's
innate toxicity and the level of exposure.
✔✔Routes of exposure - ✔✔Four primary routes of exposure are skin (dermal), eyes
(ocular), lungs (inhalation), and mouth (oral).
✔✔Acute Toxicity - ✔✔Measure of harm caused by a single, one-time exposure.
✔✔LD50 (lethal dose 50%) - ✔✔Dose of toxicant required to kill 50% of test animals
population; the lower the LD50 value, the higher the level of toxicity for the product.
✔✔LC50 (lethal concentration 50%) - ✔✔Concentration of substance in air or water
required to kill 50% of test population.
✔✔Solubility - ✔✔Ability of pesticide to dissolve in a solvent (usually water).
✔✔Absorption - ✔✔Ability of pesticide to absorb into soil.
✔✔Persistence - ✔✔Ability of pesticide to remain present and active in its original form
before breaking down.
✔✔Chemical degradation - ✔✔Breakdown of chemicals that do not involve living
organisms.
✔✔Microbial action - ✔✔The breakdown of chemicals by soil microorganisms.
✔✔Drift - ✔✔Movement of pesticide from application site caused by wind or air currents.
✔✔Photodegradation - ✔✔The breakdown of chemicals in reaction to sunlight.
✔✔Volatility - ✔✔Tendency of pesticide to turn into a gas or vapor.
QUESTIONS WITH ANSWERS GUARANTEE A+
✔✔Signal words - ✔✔Danger-poison: marked with skull and crossbones marked on
products that are highly toxic, Danger: highly toxic by at least one route of entry, these
products can cause severe eye damage or skin irritation, Warning: indicates product is
moderately toxic either orally or dermally, Caution: indicates the product is slightly toxic
either dermally or orally, causes slight eye and skin irritation.
✔✔Toxicity - ✔✔refers to the ability of pesticide to cause acute or chronic injury
✔✔Hazard - ✔✔potential for harm to occur because of the combination of the product's
innate toxicity and the level of exposure.
✔✔Routes of exposure - ✔✔Four primary routes of exposure are skin (dermal), eyes
(ocular), lungs (inhalation), and mouth (oral).
✔✔Acute Toxicity - ✔✔Measure of harm caused by a single, one-time exposure.
✔✔LD50 (lethal dose 50%) - ✔✔Dose of toxicant required to kill 50% of test animals
population; the lower the LD50 value, the higher the level of toxicity for the product.
✔✔LC50 (lethal concentration 50%) - ✔✔Concentration of substance in air or water
required to kill 50% of test population.
✔✔Solubility - ✔✔Ability of pesticide to dissolve in a solvent (usually water).
✔✔Absorption - ✔✔Ability of pesticide to absorb into soil.
✔✔Persistence - ✔✔Ability of pesticide to remain present and active in its original form
before breaking down.
✔✔Chemical degradation - ✔✔Breakdown of chemicals that do not involve living
organisms.
✔✔Microbial action - ✔✔The breakdown of chemicals by soil microorganisms.
✔✔Drift - ✔✔Movement of pesticide from application site caused by wind or air currents.
✔✔Photodegradation - ✔✔The breakdown of chemicals in reaction to sunlight.
✔✔Volatility - ✔✔Tendency of pesticide to turn into a gas or vapor.
