Environmental Science Final

The Gulf of Mexico dead zone is characterized by extremely low levels of ______ in the water.

• carbon dioxide

• dissolved salts

• oxygen

• nitrogen

What impact does deforestation have on the carbon cycle?

• increase the amount of CO₂ in the atmosphere

• decrease the amount of CO₂ in the atmosphere

• increase the amount of photosynthesis

• deforestation has no impact on the carbon cycle

Hazardous waste is:

• corrosive
• ignitable
• toxic
• all of these

A process in which mixed garbage is burned at very high temperatures is:

• recovery
• incineration
• leachate
• source reduction 

The three main categories of waste include municipal solid waste, hazardous waste, and:

• industrial waste 
• radioactive waste 
• wastewater
• green waste

What is the collection of materials that can be broken down and reprocessed to make new items?

• composting
• incineration
• leachate
• recycling 

E-waste is generated from...

• electronics
• elevated nuclear plants
• elephants at the zoo
• EPA regulated facilities

Which category produces the greatest amount of waste?

• Industrial
• Municipal
• Hazardous
• Litter

Which of the following are problems associated with landfills?

• source reduction and composting
• surface improvement and leachate
• leachate and methane production
• all of the above

All of the following are methods of solid waste disposal EXCEPT:

• landfills
• open dumping 
• incineration
• recovery