What is the unit of ph?
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What is the octane number range of te petrol used in India ? 1)90-95 2)90-99 3)80-90
Why mud houses are cooler in summer and warmer in winter ?
What is Atomic number?
What is iron ore consists of?
Why does the water in tanks and ponds not freeze in winter ?
Which element is liquid at ordinary temperature ?
How to do acidity alkanity test ofsodium chloride
When we pour into a tumble, bubbles ate seen outside why?
Explain the Properties of Gases ?
Why is salt thrown on the frozen road ?
How is water purified on large scale, for drinking ?
Give the others form of iron ore.