Which of the following represents the physical characteristics of water?

Which of the following represents the physical characteristics of water? / निम्नलिखित में से कौन पानी की भौतिक विशेषताओं को दर्शाता है?
(a) Chloride content / क्लोराइड कंटेंट
(b) BOD / बीओडी
(c) Turbidity / टर्बिडिटी
(d) COD / सीओडी

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