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Tegab Tegab
wrote...
Posts: 509
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6 years ago
Humans depend on other organisms to provide all of the following except:a.
   soil.
  b. declining biodiversity.
  c. pharmaceuticals.
  d. a balance in atmospheric CO2 and O2.
  e. recycling of nutrients.

Question 2

Human cultural evolution is generally divided into three stages. Explain how each has affected the
  Earth. What will be an ideal response?
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3 Replies

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Replies
wrote...
6 years ago
Answer to q. 1

B

Answer to q. 2

Concepts to Consider: Hunter-gatherer societies were nomadic; humans existed in small populations;
the importance of hunting declined about 15,000 years ago; impact on the environment was minimal,
although it may have included impacts on large mammals. The development of agriculture began
approximately 10,000 years ago; plants were cultivated first, then animals were domesticated;
agriculture lead to the development of more complex societies; the impact on the environment grew as
population numbers increased. The Industrial Revolution was marked by an increase in urbanization,
manufacturing, population growth, and disruption and degradation of the environment.
Tegab Author
wrote...
6 years ago
Smiling Face with Open Mouth that's the expression my face made when I got the notification email
wrote...
6 years ago
glad I put that smile on your face Happy Dummy
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