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  • 15-04-2021
  • Chemistry
contestada

select two correct answers

select two correct answers class=

Respuesta :

MathLover1121
MathLover1121 MathLover1121
  • 15-04-2021

Answer:

a and b

Explanation:

Opals are formed when water in oceans dribble through the Earth, picking up silica from sandstone along the way. And really, that only happens when the ocean water touches the land.

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