Consider the following statements 1 Oxygen is the most abundant element in the earth rsquo s crust 2...........

Geography Geomorphology

Consider the following statements:

1. Oxygen is the most abundant element in the earth’s crust.

2. Silicon is the most abundant element in the earth’s crust.

3. Iron is the most abundant element in earth’s composition.

4. Oxygen is the second most abundant element in earth’s composition.

Which of the statements given above is/are correct?

2 only

2 and 3 only

1, 3 and 4 only

2, 3 and 4 only

Explanation:

There are more than 100 chemical elements but 99 % of earth’s mass is constituted by only 8 elements. The first four are: Iron (35%), Oxygen (30%), Silicon (15%) and Magnesium (13%).
In earth’s crust, the four most abundant elements are: Oxygen (46%), Silicon (28%), Aluminium (8%) and Iron (6%)