Oceans are called “the planet’s lungs” because more than half of the world’s oxygen is produced by marine flora.
Chapter 2 Oceans and Continents Class 6
NCERT Social Science Textbook Exploring Society India and Beyond Session 2024-2025.
Why are oceans referred to as the planet’s lungs?
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Oceans are called the planet’s lungs because they produce over half of Earth’s oxygen, primarily through marine plants like phytoplankton, which photosynthesize and release oxygen, playing a critical role in sustaining life.
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