CHEMICAL ENGINEERING
Q Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?
  • A A. Hydrocarbons
  • B B. Hydrogen fluoride
  • C C. Hydrogen sulphides
  • D D. Nitrogen dioxide
Previous ______________ cannot control the noise pollution ?
Next Death may occur, when SO2 concentration in atmospheric …
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
Ψ·ΩˆΫŒΩ„ ΨͺΩ†Ϊ― Ψ±Ψ§Ψ³Ψͺہ، Ω†Ψ΄Ψͺوں Ϊ©Ϋ’ Ψ―Ψ±Ω…ΫŒΨ§Ω† Ψ±Ψ§Ψ³Ψͺہ

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