which sphere protects earths surface?\no atmosphere\no biosphere\no geosphere\no hydrosphere

Brief Explanations:

The atmosphere acts as a protective layer. It shields Earth's surface from harmful solar radiation and meteor impacts. The biosphere is the global sum of all ecosystems, the geosphere is the solid part of Earth, and the hydrosphere is the water - related part. None of these directly protect Earth's surface like the atmosphere.

Answer:

atmosphere