what is defination of conductivity?
How much conductivity of water ?
what is effect when conductity of water low or high?
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In which year, atmospheric observations using balloons started?
The recent atomic weight scale is based on 1 1H1 2 1H2 3 6C12 4 8O16
Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
Which of the following roofs provide better protection against heat? 1 Cement slab 2 Asbestos sheets 3 Reinforced concrete 4 None of these
What is super nova?
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these
define cartography?
where is the indragandhi furnal in delhi, who is bulit in krishna sagar dam
Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these
Why is ice wrapped in gunny sacks to prevent it from melting
what is composition of fizzy drinks
Which one of the following is the petroleum wax? 1 Bees wax 2 Carnauba wax 3 Paraffin wax 4 Jojoba wax