It drizzled all day long.
By searching the Web, found that humic substances are chemical components which are included in decayed or decomposed water/soils. In the past, I would had to go to a (specific) library to get some information on unfamiliar things like "humic substances." Today we can get tons of information on any things by searching through the Web immediately and easily. Thanks to the Internet, we are now able to save both money and time dramatically.
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