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Questions and Answers
What is the primary component of rock?
What is the primary component of rock?
- Gases
- Water
- Minerals (correct)
- Soil
What is the main difference between erosion and weathering?
What is the main difference between erosion and weathering?
- Erosion involves movement of materials, while weathering involves breakage of rocks. (correct)
- Erosion and weathering both involve the breakdown of rocks.
- Erosion is the breakage of rocks, while weathering is the movement of materials.
- Erosion is caused by weathering.
What is the role of soil in plant growth?
What is the role of soil in plant growth?
- Soil provides sunlight for plant growth.
- Soil provides water and minerals for plant growth. (correct)
- Soil provides only water for plant growth.
- Soil provides support for the plants.
What are the different layers of the Earth called?
What are the different layers of the Earth called?
How does the temperature change as you move from the crust to the core?
How does the temperature change as you move from the crust to the core?
What is the primary difference between erosion and weathering?
What is the primary difference between erosion and weathering?
What is the composition of soil?
What is the composition of soil?
What are the Earth materials that plants generally require for growth?
What are the Earth materials that plants generally require for growth?
What is the temperature at the Earth's core compared to the crust?
What is the temperature at the Earth's core compared to the crust?
What are the components of Earth materials?
What are the components of Earth materials?
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Study Notes
Composition of Rock
- The primary component of rock is minerals
Erosion and Weathering
- The main difference between erosion and weathering is that weathering is the breakdown of rocks into smaller particles, while erosion is the transportation of those particles away from their source
Soil and Plant Growth
- Soil plays a crucial role in plant growth as it provides water, nutrients, and support
- Plants generally require water, oxygen, carbon dioxide, and minerals from the soil to grow
Layers of the Earth
- The Earth is composed of four distinct layers: the crust, mantle, outer core, and inner core
Temperature of the Earth
- As you move from the crust to the core, the temperature increases, with the core being the hottest part of the Earth
- The temperature at the Earth's core is approximately 5,000 to 6,000 degrees Celsius, compared to the crust which is around 10 to 20 degrees Celsius
Earth Materials
- Soil is composed of minerals, water, air, and organic matter
- The components of Earth materials include rocks, minerals, soil, and water
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