How does Canada's ecological footprint compare to that of the Netherlands?

Societies consisting of populations with exponential growth may exceed the area's _________________ __________________ and thus be unsustainable.

Which of the following is a correctly described part of the hydrologic cycle?

A) raindrops form through the process of evaporation
B) precipitation refers to minerals coating sand grains with natural cement
C) most groundwater forms when water on the surface infiltrates into the ground
D) movement of water is restricted to rainfall and rivers
E) none of these

Which statement best describes breeder reactors? 

A)  The use of a breeder reactor would not extend the supplies of uranium in the world. 
B)  If a breeder reactor's safety system failed, the reactor would be fine. 
C)  Many experimental breeder reactors are safe. 
D)  A breeder reactor would generate more fuel than it would consume.

What enhances the success of a family planning program? 

A)  wide availability of contraceptives 
B)  apathetic leadership 
C)  having the majority of participants residing in the countryside 
D)  implementation by central planners

Which of the following is very common in oceanic crust?

A) dark-colored silicate minerals
B) metallic iron
C) metallic nickel
D) quartz

A(n)_____________________________________________ integrates building components to provide solar collection,heat storage,and heat distribution.

Which letter in the diagram corresponds to the method that involves cutting single or small groups of intermediate-aged or mature trees?

What causes the death of game fish in cultural eutrophication? 

A)  salt 
B)  acid deposition 
C)  suffocation from lack of oxygen 
D)  toxic substances in the water