Hardness of water is due to
ACa and Mg ions
BIron
CHeavy metals
DE-coli
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
What is known as Kalbaisakhi?
The maximum no. of offences of the same kind within the space of 12 months that can be
charged together is :
A discharge lamp filled with hydrogen gas, color lightthe lamp emit
A small pocket instrument used for measuring horizontal and vertical angle
The crops which are ordinarily grown without irrigation water is called