The first evidence of shelled organisms is calcareous tubes found with the Ediacaran fauna. Indicate whether the statement is true or false

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Environmental & Atmospheric Sciences

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Complete the defining features matrix by checking the box of the feature used to identify the boundary. Select all that apply for an ocean-ocean plate boundary.

  • High heat flow
  • Youngest seafloor age
  • Shallow earthquakes (0-30 km deep)
  • Moderate depth earthquakes (30-300 km deep)
  • Deep earthquakes (300+ km deep)
  • Earthquakes get deeper in one direction
  • There is a trench
  • Seafloor get shallower
  • There are high mountains
  • There are volcanoes on land
  • There is an island arc of volcanoes
  • Plates move apart
  • Plates move together
  • Plates slide past one another

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Environmental & Atmospheric Sciences

________ is produced by evaporation from a warm-water surface into the cool air above; often found over lakes and rivers.

Fill in the blank(s) with the appropriate word(s)

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Environmental & Atmospheric Sciences

Which optical process is most important in causing the corona?

A) absorption B) refraction C) dispersion D) diffraction E) reflection

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Environmental & Atmospheric Sciences

Based on radiometric dating, how old is the solar system?

A. 45,000 - 47,000 years B. 4.5 - 4.7 trillion years C. 4.5 - 4.7 billion years D. 4.5 - 4.7 million years

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Environmental & Atmospheric Sciences