3 Questions
Which of the following is NOT one of the four systems that make up Planet Earth?
Lithosphere
What do the four systems known as spheres contain?
All of the world's living organisms
Which term is used to describe the overlapping systems that make up Planet Earth?
Spheres
Test your knowledge of the Earth's four spheres and their interconnectedness in this quiz. Explore the land, water, organisms, and gases that make up our planet and discover how these systems work together to sustain life.
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