wHy iS tHe rEseRvOir greEn?

Something I read on Singapore Paranormal Investigators.... Very clever answer :)


Along the way, Ah Toh put up a brainteaser, he asked 'Why is the reservoir green?' It seems like an easy answer, but it was fun to think along especially for distracting the attention from a monotonous march for some people.

'Here goes the answer,' Ah Toh followed up, 'Water is colorless. However, water bodies appear bluish or greenish depending on their depth and the way the different wavelengths of light are absorbed and reflected. The presence of algae and phytoplankton in the water also results in greenish appearance of the reservoir as their chlorophyll absorb blue light and reflect green light. Sometimes green scum can also be observed in the reservoir, particularly at the inlets, where the water is relatively still. This is caused by algae bloom, which takes advantage of the greater amount of nutrients being leached from the adjacent forests.'


I was reading about the Syonan Jinja on their webby.