Science GK Practice Question and Answer
8 4 4 Q:
64424f9b0d865d025e66385d Answer : 2. "3"
4 4 4 4 4 Q:
62287439c17ed1454592457d Answer : 3. "India "
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Q: Which one of the following is the softest? 2615 05c2dbfd594bba731de8f0a22
5c2dbfd594bba731de8f0a22- 1sodiumtrue
- 2ironfalse
- 3aluminiumfalse
- 4lithiumfalse
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Answer : 1. "sodium"
Q: The number of ossicles in the ear of mammals is
2611 064424f9b0d865d025e66385d
64424f9b0d865d025e66385d- 12false
- 23true
- 34false
- 45false
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Answer : 2. "3"
Explanation :
The mammalian middle ear contains three ossicles, which move the vibrations of the eardrum into waves in the liquid and membrane of the inward ear. There are three ossicles in every ear : Malleus, Incus, Stapes. As we have a couple of ears, so altogether there are 6 ossicles, or 3 sets of ossicles.
Q: Homo nuclear molecules contain ? 2608 05c2dbe7bbc106c237a22c19e
5c2dbe7bbc106c237a22c19e- 1polar bondfalse
- 2covalent bondtrue
- 3ionic bondfalse
- 4coordinate bondfalse
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Answer : 2. "covalent bond"
Q: The term PVC used in the plastic industry stands for 2557 05c2dbc589fd00135a4b21163
5c2dbc589fd00135a4b21163- 1polyvinyl choloridetrue
- 2polyvinyl carbotatefalse
- 3phosphor vanadiu chloridefalse
- 4phosphavinyl chloridefalse
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Answer : 1. "polyvinyl choloride"
Q: Which metal is heaviest ? 2553 05c2dbd66bc106c237a22c185
5c2dbd66bc106c237a22c185- 1osmiumtrue
- 2mercuryfalse
- 3ironfalse
- 4nicklefalse
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Answer : 1. "osmium"
Q: Which gas is used in fire extinguishers ? 2549 15c2dc34c94bba731de8f0a4f
5c2dc34c94bba731de8f0a4f- 1Carbon dioxidetrue
- 2Nitrogen oxidefalse
- 3Carbon monoxidefalse
- 4Sulpher dioxidefalse
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Answer : 1. "Carbon dioxide"
Q: Beta biodiversity is an example of
2547 062287439c17ed1454592457d
62287439c17ed1454592457d- 1Run of Kutchfalse
- 2Rajasthanfalse
- 3Indiatrue
- 4Asiafalse
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Answer : 3. "India "
Explanation :
It is the number of species unique to each environment that is used to calculate species diversity between two nearby ecosystems. Considering the above slope example, the species diversity between any two patches and their communities in that particular slope represents beta diversity.
Q: The chemical used as a fixer in photography is ? 2528 05c2dc0a494bba731de8f0a31
5c2dc0a494bba731de8f0a31- 1sodium thiosulphatetrue
- 2sodium sulphatefalse
- 3boraxfalse
- 4ammonium sulphatefalse
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Answer : 1. "sodium thiosulphate"
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