CPA Environmental Safety and Protection 3

Question 1

A non-target organism is best defined as:

Accepted Answer

Any organism other than the target pest that may be exposed to the pesticide

Answer

Non-target organisms include all living things—plants, animals, and microorganisms—that were not intended to be affected by the pesticide application.

Question 2

Which pesticide formulation type generally poses the LEAST risk of runoff into surface water?

Accepted Answer

Granular formulation (G)

Answer

Granular formulations remain in place and release active ingredient slowly, reducing the likelihood of mass movement via runoff compared to liquid formulations.

Question 3

What does the term 'bioaccumulation' mean in the context of pesticide environmental fate?

Accepted Answer

The progressive increase in pesticide concentration in an organism's tissues over time

Answer

Bioaccumulation refers to the build-up of pesticide residues within an organism's tissues at concentrations higher than those found in its environment or food.

Question 4

Under the Clean Water Act, discharging pesticides to waters of the United States in a way that causes harm may require:

Accepted Answer

A National Pollutant Discharge Elimination System (NPDES) permit

Answer

The Clean Water Act's NPDES permit program regulates point-source discharges, including certain pesticide applications, to waters of the United States.

Question 5

Which of the following soil types is MOST likely to allow rapid downward movement (leaching) of pesticides?

Accepted Answer

Sandy soil with low organic matter

Answer

Sandy soils have large pore spaces and low organic matter, which reduces pesticide adsorption and allows water and dissolved pesticides to move quickly toward groundwater.

(CPA) Certified Pesticide Applicator Practice Test

(CPA) Certified Pesticide Applicator Practice Test

CPA Environmental Safety and Protection 3