A pattern of dark green dots approximately 0.5-0.75 inch in diameter is often observed on many putting surfaces in the West in spring. What causes the polka dot symptom? There could be a couple of ...
Green Matters on MSN
Physicist Finally Solves the Mystery Behind Strange Polka-Dot Patterns Found in the Grand Canyon
The Earth is experiencing dramatic changes due to environmental issues and humans seem to have made peace with it. Moreover, ...
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