Question 341
Which of the following is not a way in which underground water reaches the surface?
- AOption (a)
Through springs
- BOption (b)
Through wells
- COption (c)
Through tube wells
- DOption (d)
Through evaporation
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Correct answer
Through evaporation
Why this answer is correct
The correct answer is Through evaporation.
Key Points
- Springs are natural points of discharge where the Water Table intersects the ground surface, allowing Groundwater to flow out freely due to gravity or hydrostatic pressure. Hence, statement 1 is incorrect.
- Wells are man-made structures created by digging or drilling into the Saturated Zone of the earth to access and extract water for various purposes. Hence, statement 2 is incorrect.
- Tube wells are specialized deep-bore systems that use a long pipe to reach deep Aquifers, employing mechanical pumps to lift water to the surface level. Hence, statement 3 is incorrect.
- Evaporation is the physical process by which water changes from a liquid to a gaseous state and moves into the Atmosphere, representing a loss of water from the surface rather than a delivery method from underground. Hence, statement 4 is correct.
Additional Information
- Hydrological Context:
- Aquifers: These are underground layers of Permeable Rock or sediment (like sand and gravel) that contain and transmit Groundwater.
- Infiltration: The downward movement of water from the surface into the soil, which is the primary method of Aquifer Recharge.
- Water Table: The upper limit of the portion of the ground that is completely saturated with water; it can fluctuate based on Precipitation and extraction.
- Capillary Action: The movement of water through tiny spaces in the soil, which can bring moisture up to plant roots but is not a method for discharging large volumes of water.
- Transpiration: Part of the Water Cycle where plants absorb water from the soil and release it into the air as vapor.