A senior student marks the track section of the Playground of Annunciation Secondary School at Nkwo, Nike in Enugu State, Nigeria. He does these with the use of a watering can containing the mixture of Calcium Carbonate or Chalk and Water. He is part of the student sport committee, tasked with the preparation for their inter-house sporting event which came up on the 26th of February, 2019.
The ground is marked with a white substance (Calcium Carbonate or Granulated Chalk) which is used to demarcate the exterior part of the playground to mimic the white demarcations on a standard racetrack.
<a href="//commons.wikimedia.org/wiki/User:Arch-Angel_Raphael_the_Artist" title="User:Arch-Angel Raphael the Artist">Arch-Angel Raphael the Artist</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>