Which one of the following does not contribute to water logging?a)inad...
Explanation: The various factors that contribute to the rise in water table i.e. water-logging are –
• Over and intensive irrigation
• Seepage of water through canals and adjoining high lands
• Inadequate natural drainage and surface drainage
• Excessive rains and submergence due to floods
• Impervious obstruction.
Which one of the following does not contribute to water logging?a)inad...
Water logging is a situation where the soil is saturated with water and is unable to absorb any more water due to various reasons. The following are the factors that contribute to water logging:
Inadequate drainage:
- When the land is not sloped properly or the drainage system is not designed adequately, the water cannot drain out of the area effectively.
- This leads to stagnant water in the soil, and eventually, the soil becomes waterlogged.
Seepage from unlined canals:
- When canals are not lined properly, the water seeps into the soil, and over time, the soil becomes saturated with water.
- This can lead to waterlogging in the surrounding areas.
Frequent flooding:
- When an area is prone to flooding, the soil becomes saturated with water, and the water cannot drain out effectively.
- This can lead to waterlogging in the area, especially if the flooding is frequent.
Excessive tapping of ground water:
- Groundwater is an essential resource, but if it is extracted excessively, it can lead to waterlogging in the surrounding areas.
- When the water table drops too low, it can lead to soil compaction, and the soil becomes less permeable to water.
- This can lead to waterlogging in the area.
The correct answer is option D, which says that excessive tapping of ground water does not contribute to waterlogging. This is because excessive tapping of groundwater can lead to a drop in the water table, and this can cause other problems such as soil compaction, but it does not directly lead to waterlogging.