General Science Practice Question and Answer
8 Q: Which is the most powerful muscle in the human body?
1195 063b6a5511bd77d1a2849ffc8
63b6a5511bd77d1a2849ffc8- 1fingerfalse
- 2feetfalse
- 3jawtrue
- 4wristfalse
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Answer : 3. "jaw"
Explanation :
The masseter muscle, which is one of the muscles used for chewing and is located in the jaw, is often considered one of the most powerful muscles in the human body in terms of its force and capability. However, the term "most powerful" can be interpreted in different ways, considering factors like strength, endurance, or speed. Different muscles might be considered the most powerful depending on the specific criteria used.
Q: Which of the following metal is mainly used in mobile phone batteries?
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632853784ada076be6505442- 1Lithiumtrue
- 2Copperfalse
- 3Copperfalse
- 4Aluminiumfalse
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Answer : 1. "Lithium"
Q: Globulins of the blood plasma are responsible for-
1188 062f10bd809a97851b625df08
62f10bd809a97851b625df08- 1Blood clottingfalse
- 2Defence mechanismstrue
- 3Oxygen transportfalse
- 4Osmotic balancefalse
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Answer : 2. "Defence mechanisms"
Q: By what metabolic process in the kitchen can you make food like curd, paneer and sauerkraut?
1187 0644125162d621da116a30840
644125162d621da116a30840- 1Pasteurisationfalse
- 2Fermentationtrue
- 3Condensationfalse
- 4Steamingfalse
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Answer : 2. "Fermentation"
Explanation :
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
Q: In 1928, who discovered that when a ray of coloured light enters a liquid, a fraction of the light scattered by that liquid is of a different colour?
1185 06441226772ca731a9945cf9b
6441226772ca731a9945cf9b- 1SN Bosefalse
- 2Lord Rayleighfalse
- 3CV Ramantrue
- 4John Tyndallfalse
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Answer : 3. "CV Raman"
Explanation :
Sir Chandrasekhara Venkata Raman, discovered on 28 February 1928, that when a beam of coloured light entered a liquid, a fraction of the light scattered was of a different color, dependent on material property. This radiation effect of molecular scattering of light bears the name of ‘Raman Effect’, from which many applications in photonic communications and spectroscopy evolved. The Raman Effect is the process of scattering light particles by molecules of a medium.
Q: Sun sign vitamin is-
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63b6b63528c33f137b3b77f8- 1Vitamin Afalse
- 2Vitamin Cfalse
- 3Vitamin Kfalse
- 4Vitamin Dtrue
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Answer : 4. "Vitamin D"
Explanation :
Vitamin D is often referred to as the "sunshine vitamin" because our bodies can produce it in response to sunlight exposure. When our skin is exposed to sunlight, it synthesizes vitamin D, which is important for bone health and various other bodily functions.
Q: What is the average life of Red blood cells in the human body?
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6310f3f71547bf2f2cc8e4d8- 1Around 120 daystrue
- 2Around 270 daysfalse
- 3Around 300 daysfalse
- 4Equivalent to human’s lifefalse
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Answer : 1. "Around 120 days "
Explanation :
1. The average life of red blood cells in the human body is 120 days. This is the time it takes from the formation of red blood cells until they flow in the blood. Red blood cells are made in the bone marrow and then they are shed into the blood. While flowing in the blood, red blood cells carry oxygen from the lungs to the rest of the body and carry carbon dioxide from the rest of the body to the lungs.
Q: Petrochemicals are used in the manufacture of________.
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639c8c094eaee21296c2811b- 1fertilizerfalse
- 2biogasfalse
- 3detergenttrue
- 4pesticidefalse
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