Sustainable Practices & Conservation Flashcards
7 cards from real CSM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Sustainable Practices & Conservation flashcards as text
Which green infrastructure practice uses vegetation and soil to remove pollutants while allowing stormwater to infiltrate into the ground?
Answer: Bioretention cell
Bioretention cells (rain gardens) use engineered soil media and plants to filter and infiltrate stormwater runoff.
What is the primary purpose of a constructed wetland in a stormwater management system?
Answer: Provide water quality treatment through biological processes
Constructed wetlands use aquatic vegetation and microbial activity to remove nutrients, sediments, and other pollutants from stormwater.
A municipality installs permeable pavers in a parking lot. What is the MOST direct hydrologic benefit?
Answer: Reduced surface runoff volume
Permeable pavers allow water to infiltrate through joints or pores, directly reducing the volume of surface runoff generated.
Which metric best evaluates whether a Low Impact Development (LID) design meets volume-based runoff performance standards?
Answer: Runoff volume retention or capture depth
Volume-based LID standards are typically evaluated by how much runoff depth (e.g., first 1 inch) is retained or captured on-site.
Tree canopy interception contributes to stormwater management primarily by:
Answer: Temporarily storing rainfall on leaves and branches before evaporation
Tree canopies intercept rainfall, holding it on leaf surfaces where it evaporates rather than reaching the ground as runoff.
A rain barrel system is best described as what type of conservation practice?
Answer: Source control harvesting
Rain barrels capture rooftop runoff at the source for later reuse, classifying them as source control and water harvesting practices.
Which sustainable landscape practice most directly reduces the nutrient load in stormwater runoff from residential turf areas?
Answer: Replacing turf with native plantings requiring no fertilization
Replacing fertilizer-dependent turf with native plants eliminates the nutrient source rather than managing it, most directly reducing nutrient runoff.