The carbon dioxide content in the air that we exhale is about?
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✅ Correct answer: B. 4%
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More Everyday Science MCQs
Siemens is the unit of________?
✅ B. Electrical Conductance
How many bones in our body?
✅ C. 206
The gas usually filled in the electric bulb is______?
✅ B. Nitrogen
Which of the following is responsible for largest amount of oxygen on earth?
✅ A. Algae
Deficiency of Vitamin-A results in _____?
✅ B. Night blindness
Spring tides occur on new moon and full moon days because on these days________?
✅
Which vitamin can be synthesized in skin with adequate sunlight exposure?
✅ B. Vitamin D
Sunlight exposure enables vitamin D synthesis in skin. Read more
According to quantum theory of light, photons are __?
✅ C. Energy packets
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