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ARC-Easy / NAEP_2009_4_S7+6 / A thermometer shows that the outside air temperature is colder than the…

Problem

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question

A thermometer shows that the outside air temperature is colder than the temperature at which water turns to ice. However, ice on the sidewalk melts. What probably caused this?

choices

  • The air heating the sidewalk
  • The sidewalk reflecting sunlight into the air
  • The wind causing the ice on the sidewalk to melt
  • The sunlight making the sidewalk warmer than the air

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