Question

most abundant non metal in Earth crust​

Answer 1

Oxygen - 46.6% Oxygen is the most abundant element in the Earth's crust.

Silicon - 27.7% Silicon is the second most common element present in the crust with an abundance of 276,900 ppm. ...

Aluminum - 8.1% At 80,700 ppm, aluminum is the third most abundant element in Earth's crust. ...

Iron - 5%

Answer 2

Oxygen:46.6%

silicon:27.7%

Aluminium:8.1%

iron:5%