Free CHMM Waste Management Questions and Answers — Questions and Answers
Question 1: The federal law that reduced hazardous waste contamination was which one?
- RCRA (Correct answer)
- CERCLA
- PPA
- WMNA
Correct answer: RCRA
The Resource Conservation and Recovery Act (RCRA) is the principal federal law in the United States governing the disposal of solid waste and hazardous waste. Enacted in 1976, RCRA's primary goal is to prevent hazardous waste contamination by regulating the generation, transportation, treatment, storage, and disposal of hazardous waste. It established a 'cradle-to-grave' management system for hazardous waste.
Question 2: Why is waste management not separate from other global challenges like resource sustainability?
- Invalid
- Valid (Correct answer)
- None of the above
- Depends upon the waste type
Correct answer: Valid
Waste management is intrinsically linked to broader global challenges like resource sustainability because waste represents discarded resources. Inefficient waste management leads to the loss of valuable materials that could be recycled or reused, increasing the demand for virgin resources and contributing to environmental degradation. Effective waste management, therefore, is a critical component of a sustainable resource economy.
Question 3: His confidential memo stated, "I think the economic logic behind dumping a load of toxic waste in the lowest wage country is impeccable and we should face up to that, I've always thought that countries in Africa are vastly under polluted and their air quality is probably vastly inefficiently low compared to los angeles." Just between us, shouldn't the World Bank encourage filthy industry migration to LDCs?
- Lawrence summers (Correct answer)
- Peter Newell
- Dorceta taylor
- Henry Giroux
Correct answer: Lawrence summers
The controversial memo quoted in the question, suggesting that 'the economic logic behind dumping a load of toxic waste in the lowest wage country is impeccable,' was attributed to Lawrence Summers. He was the chief economist of the World Bank at the time the memo was written in 1991. The memo sparked significant debate about environmental justice and economic development.
Question 4: is the quick heating of biodegradable trash during the first stages of composting to eliminate moisture and reduce its weight.
- Bio-drying (Correct answer)
- Plasma Arc waste disposal
- Anaerobic digestion
- Waste autoclave
Correct answer: Bio-drying
Bio-drying is a process where biodegradable waste is rapidly heated through aerobic biological activity, typically during the initial stages of composting. The primary purpose of this quick heating is to evaporate moisture from the waste, thereby reducing its weight and volume. This process prepares the waste for further treatment or energy recovery, as drier waste is more efficient for incineration or other thermal processes.
Question 5: Make trash management more effective by
- reducing our trash output (Correct answer)
- using more disposable items
- releasing industrial emission to atmosphere
- by discarding recylable items
Correct answer: reducing our trash output
The most effective way to improve trash management and reduce its environmental impact is by preventing waste generation in the first place. Reducing our overall trash output lessens the burden on landfills, conserves natural resources, and decreases pollution associated with manufacturing and disposal. This approach aligns with the 'reduce' principle of the waste hierarchy, which prioritizes waste prevention.
Question 6: The fringe effect was present.
- Ancient times (Correct answer)
- Middle Ages
- industrial revolution
- Modern Era
Correct answer: Ancient times
The 'fringe effect,' often referring to increased biodiversity or unique conditions at the boundaries between different habitats or human settlements, has been an observable phenomenon since humans began interacting with their environment. Even in ancient times, as human populations formed settlements and altered landscapes, the edges of these modified areas would have exhibited distinct ecological characteristics. This fundamental interaction between human activity and nature's boundaries has therefore been present throughout history.
Question 7: The municipality or local authority charges users based on how much rubbish they bring for pickup.
- pay as you throw (Correct answer)
- Polluter pays principle
- Resource efficiency
- Zero waste
Correct answer: pay as you throw
The 'pay as you throw' (PAYT) system is an economic instrument where residents are charged for waste collection based on the amount of waste they generate. This directly aligns with the description of a municipality charging users based on how much rubbish they bring for pickup. It incentivizes waste reduction and recycling by making individuals financially accountable for their waste output.
Free CHMM Waste Management Questions and Answers
The federal law that reduced hazardous waste contamination was which one?