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Featured Word B2

biosphere (noun)

The biosphere is the worldwide sum of all ecosystems, encompassing all living organisms and the zones of air, land, and water they inhabit. It is the global ecological system integrating all living beings and their relationships with the lithosphere, hydrosphere, and atmosphere.

💬 Example

"Recycling and reducing waste are small steps we can take to help protect the biosphere."

💡 Memory Tip

Think of 'BIO' (life) and 'SPHERE' (the Earth's shape). It's the 'Life-Sphere.'

🏛️ Origin

🔗 Synonyms
ecosphere ecosystem environment nature life zone
⚠️ Common Mistakes

Using 'a biosphere' for Earth. → The biosphere.

Confusing 'biosphere' with 'atmosphere'. → The biosphere includes life; the atmosphere is the air.

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