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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Najmnour Najmnour
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6 years ago
Earth's magnetic field is generated in the iron-rich mantle.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

An experimental result that is statistically significant is:
 
  a. likely to occur by chance alone
  b. unlikely to occur by chance alone
  c. scientifically significant or important
  d. the result of an experiment with only one variable
  e. influenced by sampling error

Question 3

The oldest parts of Earth's crust are located along the mid-ocean rifts.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 4

An experimenter surveyed one-half acre of a desert preserve and found three cactus wren nests. Assuming that the habitat is fairly uniform, how many nests would he expect to be in the entire 200-acre preserve?
 
  a. 6
  b. 200
  c. 600
  d. 1200
  e. 6000

Question 5

The central part of Earth's core is solid.
 
  a. True
  b. False
  Indicate whether the statement is true or false
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AzhanAzhan
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6 years ago
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Najmnour Author
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#2
6 years ago
Above and beyond my expectations for this site
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