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1. With the aid of a labeled diagram, discuss three internal structures of the Earth.

2. State four importances of the surface layer of the Earth's crust.

3. Discuss igneous rocks under the following headings:
- Mode of formation
- Characteristics

4. State four uses of igneous rocks.

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Final answer:

The Earth's internal structure includes the crust, mantle, and core. The surface layer of the crust is vital for various reasons, and igneous rocks form through specific processes with diverse applications.


Explanation:

Internal Structures of the Earth:

1. Crust: The Earth's outermost layer, divided into oceanic and continental crust. 2. Mantle: Lies beneath the crust, composed of solid rock. 3. Core: Consists of the inner core (solid iron) and outer core (liquid iron).

Importance of Earth's Crust:

1. Habitat for living organisms. 2. Source of valuable resources. 3. Controls Earth's landforms. 4. Helps in understanding Earth's history.

Igneous Rocks:

Formation: From cooling and solidification of magma/lava. Characteristics: Crystalline structure, categorized based on texture. Uses: Construction materials, jewelry, as a source of heat, in landscaping.


Learn more about Earth's Structure and Rocks here:

https://brainly.com/question/11295375


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