Air contains volume of carbon dioxide approximately?
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✅ Correct answer: D. 0.03%
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More Everyday Science MCQs
Ruby is an oxide of_____?
✅ D. aluminium oxide
The SI base unit for mass is________?
✅ C. Kilogram
The chemical name of “Acid” (Tezaab) is______?
✅ B. Sulfuric acid
What sub-class of neutron star is known for its extremely high magnetic field?
✅ B. Magnetar
As the temperature of ice rises, the ice melts and its density?
✅ C. Increases
How many pairs of walking legs does a cockroach have?
✅ C. Three
Dental mirror is what type of a mirror?
✅ A. Concave mirror
Penicillin is used to fight what type of infections?
✅ B. Bacteria
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