You might be talking about ice but hard water is sourced from limescale rock and the limescale is in the water and that is what you get in your kettle when you dont filter the hard water.
hard water is which has no ability to lather with soap standard hard water contains 1mg of calcium carbonate in every 1ml of water.
No. Hard water is water with high amounts of dissolved calcium and magnesium.
Hard water contain calcium bicarbonate, magnesium bicarbonate in temporary hard water and calcium/magnesium sulfate in permanent hard water. Soft water contain doesn't contain these substances or only in very limited concentations.
Hard water is the one that does not lather with soap. Permanent hard water can be converted to soft water by adding sodium carbonate (Na2CO3), or calgon or zeolite.
'Intractable' means difficult to manipulate, or hard to manage.
you manage water by having a water pipe that sends water to houses.
YES
it is hard to manage when my health is not good
to work hard and honest
Because it is a virus
To manage resources you have to work hard to own resources firstly. Having the right academic credentials will help you manage resources well.
hard to manage, not easily treated, stubborn, obstinate, and hard to move forward
There are a couple of things that all plants will have to manage. Plants must manage water, sunlight, and the nutrients that surround them.
utility programs
its hard to get but an good feeling to manage it.
Utility programs