Basic Science Practice Question and Answer
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Q: The maximum limit in decibels of sound intensity above which a person cannot hear—
2379 05f61c9fcd7fb716774bc0fab
5f61c9fcd7fb716774bc0fab- 150 dbfalse
- 270 dbfalse
- 385 dbfalse
- 495 dbtrue
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Answer : 4. "95 db"
Q: What substance dissolves in Tears?
2359 05f90fff5891d2b03f20ebd7e
5f90fff5891d2b03f20ebd7e- 1Common salttrue
- 2seafalse
- 3strachfalse
- 4Glucosefalse
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Answer : 1. "Common salt"
Q: ______ is used in yellow lamp street lights.
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5ee86c2981b3dd0cad84bc1c- 1Neonfalse
- 2Nitrogenfalse
- 3Phosphorousfalse
- 4Sodiumtrue
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Answer : 4. "Sodium"
Q: Which of the following metals is used in accumulator batteries?
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5f746050a921aa16e68baaa1- 1Copperfalse
- 2Leadtrue
- 3Aluminumfalse
- 4Zincfalse
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Answer : 2. "Lead"
Q: Which one of the following organisms has a role in converting nitrates to free nitrogen?
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5ef585b0f2ebd073795f236b- 1Pseudomonasfalse
- 2Nitrosomonasfalse
- 3Nitrobacterfalse
- 4Rhizobiumtrue
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Answer : 4. "Rhizobium"
Q: Octopus belongs to the phylum
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5f436ad397c6dd29b38ec477- 1Echinodermatafalse
- 2Nideriafalse
- 3Molluscatrue
- 4Chordatafalse
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Answer : 3. "Mollusca "
Q: The sweet taste of fruits is due to-
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5f61cd4c8561dc09cc7809ba- 1Ribosefalse
- 2Lactosefalse
- 3Fructosetrue
- 4Maltosefalse
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Answer : 3. "Fructose"
Q: Whose register is the montrix record?
1910 05f60427d2eed863f3a805bfb
5f60427d2eed863f3a805bfb- 1Dangerous foreign speciesfalse
- 2endangered wild speciesfalse
- 3Aquatic places at risk under anthropogenic activitiestrue
- 4None of thesefalse
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Answer : 3. "Aquatic places at risk under anthropogenic activities"
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