In the Insight to A National Geographic Explorer segment about Sylvia Earle’s encounter with an
octopus, we learn that humans are newcomers who have managed to dominate the earth in a relatively
short time. Why does she have a problem with this? What are some problems that you could envision
from human dominance What will be an ideal response?
ANS:Answer
should include:
? She says that octopus have been around for billions of years but humans in a short period
of time dominate land, sea, and air.
? She suggests that the changes that we have provoked may be leading to a Sixth major
extinction event
? Reduction in diversity of other life on earth leading to a long-list of potential problems
? Increased pollution and human population growth could deplete the earth, ocean, and air.
? Loss of quality of life, reduction in biological diversity and potential resilience of ocean
ecosystems, reduction of ocean food sources, and reduction of materials from the ocean
(including economic resources).
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Solar-powered distillation of water
A. does not require significant energy input. B. works even on very saline water, including seawater. C. is very fast. D. requires the same amount of land area as any other method of water distillation.
True or False: All clay-mineral grains in a clastic sedimentary rock are clay size
Indicate whether this statement is true or false.
Discuss the composition and characteristics of Earth's layers. How was the composition of the mantle
and core determined? What will be an ideal response?
Explain why there are so many malnourished people on the planet
What will be an ideal response?