Basic Science Practice Question and Answer
8 Q: Who among the following are the inventors of dynamite?
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5f912dd4c011be03879fe9a4- 1Einsteinfalse
- 2Newtonfalse
- 3Alfred Nobeltrue
- 4Madame Curiefalse
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Answer : 3. "Alfred Nobel"
Q: Richter Scale is used in measuring?
1302 15f912d7b9e18f97b7040e7d7
5f912d7b9e18f97b7040e7d7- 1Earthquake intensitytrue
- 2Wind speedfalse
- 3Depth of seafalse
- 4Body temperaturefalse
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Answer : 1. "Earthquake intensity"
Q: What is the following statements is incorrect.
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5f6051cf2e2c892823458623- 1Photochemical haze always contains ozone.false
- 2The toxic effect of carbon monoxide is more attractive to hemoglobin than oxygen.false
- 3Lead is the most dangerous metal pollutant of automobile exhaustfalse
- 4None of thesetrue
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Answer : 4. "None of these"
Q: From which source is the list of countries emitting carbon dioxide based on carbon dioxide emissions?
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5f60443d80a26b7dab000d1c- 1Burning of fossil fuelsfalse
- 2Cement Industryfalse
- 3Both of the abovetrue
- 4None of thesefalse
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Answer : 3. "Both of the above"
Explanation :
This is a list of sovereign states and territories by carbon dioxide emissions due to certain forms of human activity, based on the EDGAR database created by European Commission and Netherlands Environmental Assessment Agency.
Q: An aquatic plant was introduced to the US to remove pollution in Indian aquatic bodies as a troublesome weed. what is its name?
1285 05f6046a209624c19c5c13610
5f6046a209624c19c5c13610- 1hawthornfalse
- 2Egiolpstrue
- 3hyacinthfalse
- 4Pistiafalse
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Answer : 2. "Egiolps"
Explanation :
So the correct answer is 'Eichhornia crassipes' An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies.
Q: Embryos of Tritium aestivum have a chromosome number?
1283 0604de8a0e147c16b2869ac67
604de8a0e147c16b2869ac67- 144false
- 263true
- 365false
- 467false
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Answer : 2. "63"
Q: Rust on iron?
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5f9101807793eb35d72c610c- 1ferric oxidefalse
- 2Hydrated ferrous and ferric oxidefalse
- 3Alkali ferrous and ferric carbonatefalse
- 4Because of all of the abovetrue
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Answer : 4. "Because of all of the above"
Q: The level of sound during normal conversation is
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5feafe33f6205c4d625cf626- 120 dbfalse
- 240 dbfalse
- 360 dbtrue
- 480 dbfalse
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