Aquifers and Cruise ship pollution

Aquifer separated from surface by impermeable rock layer

• confined
• unconfined
• perched
• none

Well that goes down to confined aquifer and doesn't require pumping

• artesian well
• unconfined well
• master well
• ultra deep well

One of the world's largest aquifers

• Biscayne aquifer
• Great Artesian aquifer
• ganges
• none

top of water level of unconfined aquifer

• water table
• estuary
• perched aquifer
• sea level

Which aquifer may contain pollutants?

• confined
• unconfined
• perched
• none

Cruise ships must be how far out to sea to dump raw sewage?

• 4 kilometers
• 4.5 kilometers
• 4.8 kilometers
• 4.9 kilometers

the fuel cruise ships use within 4.8 kilometers must be low in 

• sulfer
• hydrogen
• green house gasses
• nitrogen

the waste water from laundary and showers

• grey water
• black water
• ballast water
• other

toilet water is 

• grey water
• black water
• ballast water
• all

Which water source can introduce exotic species to a new area?

• grey water
• black water
• ballast water
• all