What is ultrofication?

What is the correct setting for Sta-green fertlizer on a Republic rotary spreader? What is the sound of rain on a galvanized-iron roof called? What is 111.96 ftsec to mileshr? Is kidney gfr of 60 normal? Biologist and their contribution? How does 'nanosize' layer make the tennis ball last longer? What are the results of the control group? What is the meaning of KG CLASS? What are the differences between inference observation and prediction? If you put rope in salt water and then burn it will it stay together? What is energy resources that are continually being replenished called? Why Blowing air on a small fire makes it bigger? What is the scientific name of a magnet? What is the name of the variable that are kept the same in an investigation? How do you remove stain from fiberglass shower? Is it true that the advances in technology never depends on advances in science? What is the process called a scientist use to check each other and work? When you dip your hand in cold water you feel it cold. Can you name the mode of heat transfer and its direction? How do you make an eight layer density column? What were the facilities like?