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Questions and Answers
What term describes the region of permanently frozen water on Earth?
What term describes the region of permanently frozen water on Earth?
- Biosphere
- Hydrosphere
- Lithosphere
- Cryosphere (correct)
Which of the following best describes the interrelationships between Earth's systems?
Which of the following best describes the interrelationships between Earth's systems?
- They are interconnected and interdependent. (correct)
- They operate independently of one another.
- They rely on only one system for support.
- They exist in isolation to maintain balance.
What is the primary purpose of technology developed through scientific discoveries?
What is the primary purpose of technology developed through scientific discoveries?
- To complicate daily life.
- To make life safer and easier. (correct)
- To maintain the status quo in society.
- To replace natural processes.
What role do organisms in the biosphere play in relation to Earth's atmosphere?
What role do organisms in the biosphere play in relation to Earth's atmosphere?
Which of the following is NOT one of Earth's four main systems?
Which of the following is NOT one of Earth's four main systems?
What are the three main parts of the geosphere?
What are the three main parts of the geosphere?
What is the primary composition of Earth's atmosphere?
What is the primary composition of Earth's atmosphere?
Which layer of Earth has temperatures ranging from 100°C to 4000°C?
Which layer of Earth has temperatures ranging from 100°C to 4000°C?
What percentage of Earth's water is salt water?
What percentage of Earth's water is salt water?
Which of the following is NOT one of the Earth systems identified by scientists?
Which of the following is NOT one of the Earth systems identified by scientists?
Which gas is present in the least amount in Earth's atmosphere?
Which gas is present in the least amount in Earth's atmosphere?
Which layer of the Earth is described as the rigid outer shell?
Which layer of the Earth is described as the rigid outer shell?
What role does the atmosphere play in supporting life on Earth?
What role does the atmosphere play in supporting life on Earth?
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Study Notes
Earth Systems
- The geosphere is Earth's solid, rocky part.
- The geosphere is composed of the crust, mantle, and core.
- The crust is the thin, rigid outer layer of Earth.
- There are two types of crust: continental crust and oceanic crust.
- The mantle is a thick layer of hot, dense rock.
- The core is the extremely hot center of Earth.
- The core is composed of mostly iron and nickel.
- The atmosphere is a layer of gases surrounding Earth.
- The atmosphere is composed mostly of nitrogen and oxygen.
- The hydrosphere is all the water on Earth.
- The biosphere includes all living organisms on Earth and their environments.
- All four Earth systems are interconnected and interdependent.
Interdependence of Earth Systems
- Earth's atmosphere formed millions of years ago through interactions with the geosphere, hydrosphere, and biosphere.
- Organisms in the biosphere, including humans, continue to change the atmosphere through their activities and natural processes.
Technology
- Technology is the application of scientific discoveries to solve problems.
- Technology is transferable, meaning it can be applied to new situations.
- Many technologies used in everyday life were originally developed for the space program.
- Technology can be used to improve safety, such as with smoke detectors.
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