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Questions and Answers
Which sphere is defined as the part of Earth in which all life exists?
Which sphere is defined as the part of Earth in which all life exists?
What does the term 'lithosphere' refer to?
What does the term 'lithosphere' refer to?
In which sphere would you find all forms of water on Earth?
In which sphere would you find all forms of water on Earth?
Which of the following correctly matches spheres with their components?
Which of the following correctly matches spheres with their components?
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What is the correct definition of the term 'biosphere'?
What is the correct definition of the term 'biosphere'?
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Study Notes
Different Spheres
- The different spheres are: biosphere (plants and animals), lithosphere (land), hydrosphere (water), atmosphere (air)
- Each sphere can be identified in photographs
- Components of the spheres are important for life
- Life exists from the poles to the equator, sustaining plants, animals and single-celled organisms.
- The biosphere extends to the uppermost parts of the atmosphere and to the bottom of the oceans
Biosphere
- The word "biosphere" is derived from the Greek words "bios" (meaning life) and "sphaira" (meaning sphere)
- This means "the sphere in which life occurs"
- The biosphere is where all life exists on Earth.
- Components of the spheres interact with each other, leading to the unique characteristics of life.
- The biosphere is defined by the unique combination and interaction of components of different spheres.
Lithosphere
- The lithosphere is the hard part of Earth.
- It contains the land, rocks, and soil on Earth's surface.
- Microorganisms and sea creatures can be found within this sphere, from the uppermost parts of the atmosphere to the depths of the oceans, and organisms from the poles to the equator.
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Description
Explore the different spheres of Earth including the biosphere, lithosphere, hydrosphere, and atmosphere. Each sphere plays a vital role in supporting life and interacts with one another to create the conditions necessary for existence on our planet. Test your understanding of these fundamental concepts.
