largest layer of earth's surface, composed mostly of silicon, oxygen,magnesium,and iron is called____________
You may be looking for "earth's crust."http://en.wikipedia.org/wiki/Crust_(geology)
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The largest layer of the Earth's surface, composed mostly of silicon, oxygen, magnesium, and iron is called the "mantle."
The largest layer of the Earth's surface, composed mostly of silicon, oxygen, magnesium, and iron, is called the mantle. To arrive at this answer, we can break down the question and analyze it step by step:
1. Largest layer: This implies that we are looking for a specific layer of the Earth that encompasses a significant portion of its surface.
2. Composed mostly of silicon, oxygen, magnesium, and iron: This tells us that the layer in question is primarily made up of these elements.
By combining these two pieces of information, we can conclude that the mantle fits the criteria.
The mantle is located between the Earth's outer core and the crust. It accounts for about 84% of the Earth's total volume. It is predominantly made up of silicate minerals rich in silicon and oxygen, along with significant amounts of magnesium and iron. The mantle's composition can change slightly depending on depth, pressure, and temperature variations within the layer.