Drinking water can be made safe by ______

Treatment of cancer can be made by

Assertion : Excess nitrate in drinking water causes 'blue baby' syndrome. Reason : The maximum limit of nitrate in drinking water is 50 ppb.

Plants can be made disease-resistant by

Which of the following conditions in drinking water causes methemoglobinemia ?

1/x+4/x=1/72 In order to create safe drinking water, cities and towns use water treatment facilities to remove contaminants from surface water and groundwater. Suppose a town has a treatment plant but decides to build a second, more efficient facility. The new treatment plant can filter the water in the reservoir four times as quickly. Working together, the two facilities can filter all the water in the reservoir in 72 hours. The equation above represents the scenario. Which of the following describes what the term (1)/(x) represents.

Complete the following sentences : Water can be made to boil at 115^@ C by …................... pressure over its surface.

A student tests a sample of drinking water and reports its pH as 6 at room temperature. Which one of the following might have been added in water?

A piece of iron sinks in water, but a slip made of iron floats in water. Why?

How can water be made safe for drinking purposes?

Drinking mineral water/aerated water drink for a long period would result