A prefix is a word part added to the  beginning of a word to create a new word with a different  meaning.    Examples: refill, undo,  incomplete, precooked   â¦  (Letters added to the end of a root or word are a suffix.). + 213 others found this useful. Caroline Russell.
Its not uncommon to have above 90% relative humidity readings. I find it uncomfortable once the humidity is over 70%, but I'm really not a 'good' test subject as I have lived in Florida all my life and have gotten use to high humidities. I can tell you one thing with certainity, the insects love the high readings! 60% is a threshold in the summer.
Night-time temperatures should be on the cool side, below 60AF. Humidity Low humidity around the home, usually averaging 10 to 15 percent, can be a problem for many tropical indoor plants. Thirty percent humidity is about as low a level as a fern can tolerate. Forty to 50 percent humidity is a more desirable range.Symptoms of plant damage caused by low humidity include browning and drying of the tips of the leaves or fronds.umidity Low humidity around the home, usually averaging 10 to 15 percent, can be a problem for many tropical indoor plants. Thirty percent humidity is about as low a level as a fern can tolerate. Forty to 50 percent humidity is a more desirable range.