Over the next century, the continued growth of the human population will likely increase the __________ rates of endangered and threatened species.

Which timber management technique causes the most biodiversity loss and erosion?

When decomposers in landfills use up all the oxygen, the landfill may become anaerobic. In these cases, the anaerobic bacteria landfill will generate high quantities of….

Hunter gatherer societies most likely had relatively __________ birth rates and high death rates compared to modern human populations.

Urban sprawl is related to…

Which type of mining disturbs the least amount of land?

Match the urban environmental problem with its source.

When dead zones are formed in coastal regions, which organisms remove the dissolved oxygen from the water?

A modern human population with a total fertility rate of 2.1 is most likely __________.

A(n) __________ species still has enough remaining individuals to survive in the short term but, because of declining numbers, it is likely to become endangered in the near future.