Nebraska Environmental
Practice Questions & Answers (2026)
Environmental questions on the Nebraska exam cover both federal environmental laws and Nebraska-specific disclosure requirements. Federal topics include lead-based paint (pre-1978 housing), asbestos, radon, underground storage tanks, and CERCLA liability. Nebraska has additional state-level environmental disclosure requirements enforced by the Nebraska Real Estate Commission — including Nebraska-specific environmental conditions that affect property use and disclosure. Environmental questions trip up candidates who studied only federal law without reviewing the NE-specific overlay.
Nebraska Exam Study Resources
Everything you need to pass — in one place.
Nebraska Environmental — Practice Questions & Answers
98 questions on Environmental from the Nebraska real estate question bank. First 10 are free — sign up to unlock all 98.
Q1. Mold in a residential property is primarily a concern because it:
Explanation
Mold can cause serious respiratory and other health problems, particularly for those with allergies or compromised immune systems. Its presence also signals underlying moisture or water intrusion problems requiring remediation.
Q2. The term 'brownfield' refers to:
Explanation
A brownfield is a previously used commercial or industrial property where redevelopment may be complicated by known or suspected environmental contamination from past activities.
Q3. Carbon monoxide detectors are important in homes because carbon monoxide is:
Explanation
Carbon monoxide is a colorless, odorless, tasteless gas produced by incomplete combustion of fuels (gas, oil, wood). It is called the 'silent killer' because it cannot be detected without a CO detector.
Q4. In Nebraska, a seller of a home with a private well should disclose:
Explanation
Nebraska sellers with private wells should disclose known water quality issues, available test results, and any known contamination, particularly given the risk of agricultural runoff and nitrate contamination in the state.
Q5. Polychlorinated biphenyls (PCBs) are most likely to be found in:
Explanation
PCBs are toxic industrial chemicals that were widely used in electrical equipment (transformers, capacitors) before being banned in 1979. They may be found in older industrial and commercial buildings.
Q6. Radon is a hazardous gas that enters buildings primarily through:
Explanation
Radon is a naturally occurring radioactive gas produced by uranium decay in soil and rock. It enters buildings through cracks in foundations, floors, and walls.
Q7. The EPA action level for radon in residential buildings is:
Explanation
The EPA recommends taking action to reduce radon when levels reach 4 picocuries per liter (pCi/L) or higher in the home.
Q8. Lead-based paint disclosure is federally required for homes built before:
Explanation
Federal law (Residential Lead-Based Paint Hazard Reduction Act) requires sellers of pre-1978 homes to disclose known lead-based paint hazards and provide buyers with an EPA informational pamphlet.
Q9. In Nebraska, disclosure of a private well's condition or water quality test results is important because:
Explanation
Nebraska has significant agricultural activity and groundwater is widely used. Nitrate contamination and pesticide runoff can affect well water quality, making well condition and water test disclosures important in Nebraska transactions.
Q10. Asbestos in a home built before 1980 is most dangerous when:
Explanation
Asbestos is most hazardous when it becomes friable (easily crumbled), releasing fibers that can be inhaled and cause serious respiratory diseases including mesothelioma and asbestosis.
Q11. CERCLA (the Superfund law) is primarily concerned with:
88 more Environmental questions
Create a free account to unlock all 98 Nebraska Environmental questions with full explanations.
Free account · No credit card · Instant access to 25 questions
Ready to take the full exam? Start free.
25 free questions · No signup · Instant access to all Nebraska topics