Humans and the Energy Cycle Answers

Which condition is a result of using an anaerobic digester? a. increase in the road quality by coating with material from the anaerobic digester b. increase in land fertility due to the addition of the nitrogen and phosphorous byproduct c. increase in pulmonary diseases due to poor air quality from gases produced in cooking and heating d. increase in the number of cattle supported by a given area of land Please select the best answer from the choices provided

Which of the following statement about energy and nutrients in an ecosystem is true? a. Energy and nutrients flow in one direction through an ecosystem. b. Energy and nutrients cycle through an ecosystem. c. Energy cycles through an ecosystem, while nutrients flow in one direction. d. Nutrients cycle through an ecosystem, while energy flows in one direction Please select the best answer from the choices provided

The Dust Bowl occurred as a result of drought and poor farming practices.

The percentage of a hunter-gatherer society’s diet provided by hunting versus gathering was mostly determined by _______.a.the climateb.the types of preyc.hunting skilld.the size of the human population

Hunter-gatherer societies traditionally occupied the same territories year-round in order to care for their livestock.

Which of the following is not true concerning the energy harnessed by humans throughout history?a.Early hominids harnessed the least energy, just that of their own bodies.b.Fire let humans increase their energy use tenfold.c.Neolithic farmers were able to harness the energy of animals.d.Modern humans use more than a hundred times the energy of early humans.

The Inuit traditionally relied upon hunting and fishing for a majority of their food because _______.a.prey animals were plentiful and easy to catchb.their homelands were not suited to farming or gatheringc.hunting is healthier and easier than gatheringd.none of the above

Typically, areas with a high energy consumption are associated with a low quality of life.

The best determinant of how an individual measures their quality of life is _______.a.family and friendsb.educationc.cultured.demographics

Which of the following best explains the factors that led to the dust bowl?a.Humans had been farming the land for too long without droughts.b.Temperatures suddenly increased and brought on drought conditions.c.Poor farming techniques that killed the soil were combined with drought.d.Humans employed bad soil management practices that were unsustainable.