Question

What is the surface of the earth made up of ?

Answer 1

Answer:

The earth is a big ball, or sphere, made mostly of rock. Inside the earth the rock is melted, but the outside cover is hard rock. Less than one-third of the earth’s surface is land and more than two-thirds are water.

Answer 2

The surface of Earth consists of water. Its atmosphere mainly consists of nitrogen, oxygen, and a small amount of carbon dioxide.

• Earth's core lies near the centre of the Earth that is deep inside the Earth.
• Its core consists of nickel and iron.
• The part that lies above the Earth's core is Earth's mantle.
• It consists of rock that contains silicon, iron, magnesium, aluminium, oxygen, and other minerals.
• The crust is the rock surface of the Earth.
• It consists of oxygen, aluminium, silicon, iron, and calcium.