Question

Name the two most important and abundant chemical elements present in the Earth's crust.

Answer 1

Hey dear here is your answer
Aluminum is the element which is most present on the crust. After iron, silicon, oxygen
Etc.
Hope it will help you

Answer 2

Oxygen and Silicon are the two most important elements that are also the most abundant elements in the crust if the Earth.

While oxygen constitutes around 46.6%, silicon is the second most abundant with 27.7% presence.

Oxygen is surely the most important element as no life form can sustain on the earth without Oxygen.

Talking about silicon, it surely acts as the backbone of the technological advancements.