najohnston118 najohnston118
  • 18-10-2017
  • SAT
contestada

Which of the following statements is true? Choose all that apply.



No observations must be used in scientific experiments.


Direct observations are used in experiments.


Indirect observations are used in experiments.


Neither direct nor indirect observations can answer science questions.

Respuesta :

tylerbakkeroxzbhz tylerbakkeroxzbhz
  • 18-10-2017
direct observations are used in experiments ? 

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