Unit Test — Cumulative exam Answers

Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels? a. They are any liquid fuel derived from once-living matter. b. They are organic fuels derived from ancient plants and animals. c. They are fuels in which dinosaur fossils are commonly found. d. They are naturally occurring inorganic fuels like coal and petroleum. Please select the best answer from the choices provided

The trend of declining ecosystem resource availability and increasing demand for these resources can best be countered by _______.a.increasing the supply of ecosystem resourcesb.decreasing the demand for ecosystem resourcesc.applying sustainable development practicesd.developing new technologies for resource collection

When is the carbon stored in plants released?a.during cellular respirationb.during photosynthesisc.when they died.none of the above

Which of the following is true concerning sources of water pollution?a.Mine wastes and heavy metals become water pollution through storm water runoff.b.Biodegradable materials like food, wood, and leaves are not considered pollution.c.Petroleum byproducts and fuels end up as pollution principally from oil spills.d.Pesticides and herbicides do not commonly become water pollutants.

Using water more efficiently _______.a.protects the environmentb.causes the loss of natural pollution filtersc.increases water contaminationd.all of the above