Hey there,
are we supposed to know the levels that make water of high quality or bad quality. Like for pH, healthy water is 6-8, and dead water is <1. Are we supposed to know all these levels for hardness, salinity etc
thanks
Hello all,
right now i am in my preliminary course studying 2U Advanced Maths, 2U advanced English, Physics, Chemistry, DNT and IPT. My school cannot provide 4U maths for year 12, and i am lover of maths...but luck is not on my side...esepcially when i hear 4U maths scales you up...
i will...