Subject :NSO Class : Class 7
WHICH IS THE MOST ABUNDENT ELEMENT ON THE EARTH
Ans 1:
Class : Class 7
The most abundant element in the earth's crust is oxygen, making up 46.6% of the earth's mass. Silicon is the second most abundant element (27.7%), followed by aluminum (8.1%), iron (5.0%), calcium (3.6%), sodium (2.8%), potassium (2.6%). and magnesium (2.1%).