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Which of the following statements about underground drainage is true

Agricultural Science
WAEC 2023

Which of the following statements about underground drainage is true

  • A. Ditches are constructed to remove excess water
  • B. Ditches are dug from a source of water to the farmland
  • C. Furrows are constructed to direct water out of the farmland
  • D. Water seeps into tiles to reach an outlet where it is discharged
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Correct Answer: Option D
Explanation

In this drainage system, perforated pipes or tiles are placed underground at a certain depth, usually below the root zone of the crops. These pipes or tiles have small holes or perforations that allow water to seep into them from the surrounding soil. As the water table rises due to excess moisture in the soil, the water seeps into these pipes through the perforations.


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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789