Continents|Hydrosphere

Pioneer in a hydrosphere are

Evolution of Atmosphere and Hydrosphere|Origin of Life|Questions

Evolution of Atmosphere and Hydrosphere|Origin of Life|Questions

The Moon|Evolution of the Earth|Evolution of Lithosphere|Evolution of Atmosphere and Hydrosphere

The Moon|Evolution of the Earth|Evolution of Lithosphere|Evolution of Atmosphere and Hydrosphere

Assertion : Ozone layer is present in the stratosphere. Reason : Hydrosphere covers about 70% of the earth's surface.

Introduction (परिचय)|Major Domains Of The Earth (पृथ्वी के प्रमुख परिमंडल)|स्थलमंडल (Lithosphere)|जलमंडल (Hydrosphere)|OMR|Summary

Assertion (A): The continents are considered as floating on the denser layers of rocks. Reason (R) : The continents are made up of lighter rocks.