Question

What is the composition of earth's crust​

Answer 1

Answer:

Lutgens and Edward J. Tarbuck, Earth's crust is made up of several elements: oxygen, 46.6 percent by weight; silicon, 27.7 percent; aluminum, 8.1 percent; iron, 5 percent; calcium, 3.6 percent; sodium, 2.8 percent, potassium, 2.6 percent, and magnesium, 2.1 percent

Explanation:

hope it will help you

Answer 2

$\red{\boxed{\mathfrak\colorbox{grey}{Answer}}}$

Lutgens and Edward J. Tarbuck, $\sf\blue{Earth's \: crust}$ is made up of several elements:

• oxygen ➥ 46.6 percent by weight
• silicon ➥ 27.7 percent
• aluminum ➥ 8.1 percent
• iron ➥ 5 percent
• calcium ➥ 3.6 percent
• sodium ➥ 2.8 percent
• potassium ➥ 2.6 percent
• magnesium ➥ 2.1 percent