The correct option is Ice-caps : 2.0%
Explanation
The hydrosphere consists of all water on Earth, distributed across oceans, continents, and the atmosphere. The vast majority of this water is saline, found in the oceans, while a small fraction constitutes fresh water available in ice caps, groundwater, lakes, and rivers.
Analysis of Water Distribution:
According to standard geographical data, the approximate percentage distribution of water on Earth is as follows:
- Oceans: 97.25% (approximately 97.3%). Option (a) is incorrect as it states 95.3%.
- Ice-caps and Glaciers: 2.05% (approximately 2.0%). Option (b) is correctly matched.
- Groundwater: 0.68%. Option (c) is incorrect as it states 0.068%.
- Lakes: 0.01%.
- Soil Moisture: 0.005%.
- Atmosphere: 0.001%.
- Streams and Rivers: 0.0001%. Option (d) is incorrect as it states 0.01%.
Key Takeaway:
Over 97% of Earth's water is saline ocean water. Of the remaining fresh water (~2.5%), the largest portion is locked in ice caps and glaciers (~2.0%), followed by groundwater (~0.68%). Rivers constitute a negligible fraction (0.0001%).