Podcast
Questions and Answers
What defines a nonrenewable energy resource?
What defines a nonrenewable energy resource?
- A resource that can be replaced within a human lifetime.
- A resource that cannot be replenished within a human lifetime. (correct)
- A resource that is abundant and easily accessible.
- A resource that is derived from renewable sources.
Which of the following is a primary cause of earthquakes?
Which of the following is a primary cause of earthquakes?
- Erosion.
- Meteor impacts.
- Volcanic eruptions.
- Tectonic plate movements. (correct)
During which geological period did the mass extinction of dinosaurs occur?
During which geological period did the mass extinction of dinosaurs occur?
- Jurassic Period.
- Paleogene Period.
- Cretaceous Period. (correct)
- Triassic Period.
What is the main component of the Earth's crust?
What is the main component of the Earth's crust?
What describes the breakdown of rocks at the Earth's surface?
What describes the breakdown of rocks at the Earth's surface?
What are fossils?
What are fossils?
What two processes are differentiated when discussing rocks?
What two processes are differentiated when discussing rocks?
In which type of rock are fossils most commonly found?
In which type of rock are fossils most commonly found?
Which type of rock is formed under extreme heat and pressure?
Which type of rock is formed under extreme heat and pressure?
What significant event is believed to have contributed to the extinction of dinosaurs?
What significant event is believed to have contributed to the extinction of dinosaurs?
Which process refers to the breakdown of rocks at Earth's surface?
Which process refers to the breakdown of rocks at Earth's surface?
What are the two main types of rocks formed by cooling and compression?
What are the two main types of rocks formed by cooling and compression?
What was the name of the supercontinent that existed over 200 million years ago?
What was the name of the supercontinent that existed over 200 million years ago?
What caused Pangaea to break apart?
What caused Pangaea to break apart?
Which layer of the Earth is liquid?
Which layer of the Earth is liquid?
Why is coal considered a nonrenewable resource?
Why is coal considered a nonrenewable resource?
Flashcards
Nonrenewable Energy Resource
Nonrenewable Energy Resource
A resource that cannot be replenished at a rate comparable to its consumption. Examples include fossil fuels like coal, oil, and natural gas.
Plate Tectonics
Plate Tectonics
The movement of Earth's tectonic plates, causing them to collide, pull apart, or slide past each other, resulting in earthquakes.
Cretaceous Period
Cretaceous Period
The geological period that saw the extinction of dinosaurs, approximately 66 million years ago.
Earth's Crust
Earth's Crust
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Fossils
Fossils
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Weathering
Weathering
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Sedimentary Rock
Sedimentary Rock
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Erosion
Erosion
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Metamorphic rock
Metamorphic rock
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Igneous rock
Igneous rock
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Pangaea
Pangaea
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Outer core
Outer core
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Study Notes
Nonrenewable Energy Resources
- Nonrenewable resources cannot be replaced within a human lifetime.
- Coal is an example; it forms from ancient plant/animal remains over millions of years.
- Renewable resources like solar, wind, and hydro are naturally replenished.
Primary Causes of Earthquakes
- Plate tectonics is the primary cause of earthquakes.
- Plate movements (collision, separation, sliding) cause ground shaking.
- Volcanic eruptions and erosion can also cause earthquakes, but less frequently.
Dinosaur Extinction
- Dinosaurs became extinct during the Cretaceous Period, ~66 million years ago.
- Possible causes include asteroid impact and major volcanic activity, leading to climate change.
Earth's Crust
- Silicon is the primary component of Earth's crust, with oxygen and other elements.
- Iron and aluminum are also significant components.
Fossils
- Fossils are preserved remains of ancient organisms.
- They are predominantly found in sedimentary rocks, which are formed from sediment layers.
Weathering and Erosion
- Weathering is the breakdown of rocks at the Earth's surface (e.g., by wind, water, temperature).
- Erosion involves the movement of weathered rock fragments to a new location by agents like wind, water, or ice.
Rock Formation
- Metamorphic Rocks: Formed under intense heat and pressure (e.g., marble).
- Igneous Rocks: Formed from cooled magma or lava.
- Sedimentary Rocks: Formed from compressed sediment layers.
Supercontinent Pangaea
- Pangaea was a supercontinent that existed ~200 million years ago.
- Plate tectonics movements broke Pangaea apart.
Earth's Liquid Layer
- The outer core is Earth's liquid layer, composed of molten iron and nickel.
- The other layers: crust (solid), mantle (semi-solid), and inner core (solid).
Coal as Nonrenewable
- Coal takes millions of years to form from compressed plant remains.
Plate Tectonics vs. Weathering
- Plate tectonics involves large-scale Earth movements (e.g., earthquakes).
- Weathering is the breakdown of rocks at the surface.
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