No
no
400ppm
yes
yes it absolutely is. 1g = 1,000,000 ug therefore it is! Further, ug/L is also the same as ppm because 1 L of water is equal to 1,000,000 ug of water.
Ug Ug Ug Ug
if water, 250 Mg = 250 megagrams (i'm not sure that's what you mean) 250 Mg (megagrams) = 250,000,000 ml 250 mg (milligram) = 0.25 ml 250 ug (micrograms) = 0.00025 ml
50 times what to equal 250 = 12500
By a strange coincidence, 250 million is equal to 250 million: neither more nor less!
250 mile equal how much time?
In all the world of mathematics, both higher and lower,there is no number equal to 250, except 250 .
Yes. 25 cm = 250 mm