(A) Hydrogen (X)
(B) Carbon Dioxide (X)
(C) Silicon (X)
(D) Oxygen ()
Answers: The most abundant element in the Earth’s crust is Oxygen.
(A) Hydrogen (X)
(B) Carbon Dioxide (X)
(C) Silicon (X)
(D) Oxygen ()
Answers: The most abundant element in the Earth’s crust is Oxygen.
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