GAP Environmental Impact Assessment 2 — Questions and Answers
Question 1: Which federal law requires farms receiving federal funding to conduct an environmental review before implementing new projects?
- National Environmental Policy Act (NEPA) (Correct answer)
- Clean Water Act (CWA)
- Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
- Resource Conservation and Recovery Act (RCRA)
Correct answer: National Environmental Policy Act (NEPA)
NEPA mandates environmental review for projects involving federal funding, permits, or land to assess potential environmental consequences.
Question 2: What is a 'buffer zone' in the context of agricultural environmental impact assessment?
- A strip of land between farmland and sensitive areas to reduce pollution runoff (Correct answer)
- A storage area for pesticide containers
- A field left fallow to increase crop rotation
- A boundary marker separating neighboring farm properties
Correct answer: A strip of land between farmland and sensitive areas to reduce pollution runoff
Buffer zones are strips of vegetation or land designed to intercept pollutants, sediment, and nutrients before they reach sensitive ecosystems like waterways.
Question 3: Which indicator is most commonly used to assess soil health impact in an agricultural environmental assessment?
- Soil organic matter content (Correct answer)
- Annual rainfall totals
- Crop yield per acre
- Fertilizer application cost
Correct answer: Soil organic matter content
Soil organic matter is a key indicator of soil health because it influences water retention, nutrient cycling, microbial activity, and erosion resistance.
Question 4: When assessing the environmental impact of irrigation, which concern is most directly related to water quality?
- Salinization of soil from evaporation of irrigation water (Correct answer)
- Increased labor costs for irrigation installation
- Reduced crop variety selection
- Higher energy consumption for pumping
Correct answer: Salinization of soil from evaporation of irrigation water
Salinization occurs when irrigation water evaporates and leaves behind salts, degrading soil structure and reducing crop productivity over time.
Question 5: What does 'cumulative impact' mean in an agricultural environmental impact assessment?
- The combined effect of multiple farm activities over time on the environment (Correct answer)
- The total cost of all environmental compliance measures
- The sum of pesticide applications in a single season
- The total acreage affected by a single storm event
Correct answer: The combined effect of multiple farm activities over time on the environment
Cumulative impact refers to the incremental environmental effects of a project combined with other past, present, and reasonably foreseeable future actions.
Question 6: Which practice best reduces the environmental impact of nutrient runoff from fertilized fields?
- Planting cover crops during off-seasons (Correct answer)
- Increasing application rates to ensure crop uptake
- Applying fertilizers during rainy periods
- Removing riparian vegetation to improve drainage
Correct answer: Planting cover crops during off-seasons
Cover crops absorb excess nutrients during off-seasons, preventing them from leaching into groundwater or running off into surface water.
Question 7: What is the primary purpose of a wetland in relation to farm runoff management?
- Natural filtration of nutrients and sediments from agricultural runoff (Correct answer)
- Providing additional farmable land during dry seasons
- Storing irrigation water for peak demand periods
- Supporting honeybee pollination activity
Correct answer: Natural filtration of nutrients and sediments from agricultural runoff
Wetlands act as natural filters, absorbing excess nutrients, sediments, and contaminants from runoff before water enters streams and rivers.
GAP Environmental Impact Assessment 2
Which federal law requires farms receiving federal funding to conduct an environmental review before implementing new projects?