Q. Which layer of the Earth is responsible for volcanic activity? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is responsible for volcanic activity as it contains magma that can rise to the surface through the crust.
Correct Answer:
B
— Mantle
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Q. Which layer of the Earth is solid and composed mainly of iron and nickel? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Inner Core is solid and composed mainly of iron and nickel, despite the high temperatures.
Correct Answer:
D
— Inner Core
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Q. Which layer of the Earth is solid and composed mainly of silicate rocks?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The crust is the outermost layer of the Earth and is solid, composed mainly of silicate rocks.
Correct Answer:
A
— Crust
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Q. Which layer of the Earth is solid despite the high temperatures? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The inner core is solid due to the immense pressure, despite its high temperature.
Correct Answer:
D
— Inner Core
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Q. Which layer of the Earth is solid yet behaves like a viscous fluid over long periods? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is solid but can flow slowly over geological time, behaving like a viscous fluid.
Correct Answer:
B
— Mantle
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Q. Which layer of the Earth is the thickest? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle is the thickest layer of the Earth, extending about 2900 km below the crust.
Correct Answer:
B
— Mantle
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Q. Which macronutrient is most important for muscle repair and growth?
-
A.
Carbohydrates
-
B.
Fats
-
C.
Proteins
-
D.
Vitamins
Solution
Proteins are most important for muscle repair and growth as they provide the building blocks (amino acids) needed for muscle tissue.
Correct Answer:
C
— Proteins
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Q. Which major international event took place in India in 2023? (2023)
-
A.
G20 Summit
-
B.
World Economic Forum
-
C.
COP26
-
D.
UN Climate Change Conference
Solution
The G20 Summit was held in India in 2023.
Correct Answer:
A
— G20 Summit
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Q. Which metal is commonly used in batteries?
-
A.
Lead
-
B.
Copper
-
C.
Iron
-
D.
Aluminum
Solution
Lead is commonly used in lead-acid batteries due to its ability to store electrical energy.
Correct Answer:
A
— Lead
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Q. Which metal is commonly used in the production of alloys? (2021)
-
A.
Lead
-
B.
Tin
-
C.
Mercury
-
D.
Bismuth
Solution
Tin is commonly used in the production of alloys, such as bronze and solder.
Correct Answer:
B
— Tin
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Q. Which metal is commonly used in the production of batteries? (2023)
-
A.
Lead
-
B.
Zinc
-
C.
Copper
-
D.
Iron
Solution
Lead is commonly used in lead-acid batteries due to its ability to store electrical energy.
Correct Answer:
A
— Lead
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Q. Which metal is commonly used in the production of stainless steel? (2023)
-
A.
Iron
-
B.
Lead
-
C.
Copper
-
D.
Zinc
Solution
Iron is the primary metal used in the production of stainless steel, often alloyed with chromium and nickel.
Correct Answer:
A
— Iron
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Q. Which metal is known for its high resistance to corrosion?
-
A.
Iron
-
B.
Copper
-
C.
Aluminum
-
D.
Titanium
Solution
Titanium is known for its high resistance to corrosion, making it suitable for various applications.
Correct Answer:
D
— Titanium
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Q. Which metal is known for its resistance to corrosion?
-
A.
Iron
-
B.
Copper
-
C.
Aluminum
-
D.
Gold
Solution
Gold is highly resistant to corrosion and tarnishing, making it valuable for jewelry and electronics.
Correct Answer:
D
— Gold
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Q. Which metal is primarily used in the construction of aircraft due to its strength-to-weight ratio?
-
A.
Titanium
-
B.
Aluminum
-
C.
Steel
-
D.
Copper
Solution
Aluminum is primarily used in aircraft construction because of its favorable strength-to-weight ratio.
Correct Answer:
B
— Aluminum
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Q. Which metal is primarily used in the production of stainless steel?
-
A.
Iron
-
B.
Nickel
-
C.
Chromium
-
D.
Zinc
Solution
Chromium is added to iron to produce stainless steel, enhancing its corrosion resistance.
Correct Answer:
C
— Chromium
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Q. Which metal is used in the production of stainless steel?
-
A.
Nickel
-
B.
Zinc
-
C.
Tin
-
D.
Lead
Solution
Nickel is used in the production of stainless steel to enhance its corrosion resistance.
Correct Answer:
A
— Nickel
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Q. Which mineral is crucial for oxygen transport in the blood?
-
A.
Calcium
-
B.
Iron
-
C.
Zinc
-
D.
Magnesium
Solution
Iron is crucial for oxygen transport as it is a key component of hemoglobin in red blood cells.
Correct Answer:
B
— Iron
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Q. Which mineral is crucial for the formation of hemoglobin?
-
A.
Calcium
-
B.
Iron
-
C.
Zinc
-
D.
Magnesium
Solution
Iron is a key component of hemoglobin, which carries oxygen in the blood.
Correct Answer:
B
— Iron
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Q. Which mountain range separates India from Tibet?
-
A.
Western Ghats
-
B.
Himalayas
-
C.
Aravalli Range
-
D.
Vindhya Range
Solution
The Himalayas separate India from Tibet.
Correct Answer:
B
— Himalayas
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Q. Which movement was launched by Mahatma Gandhi in 1930 to protest against the salt laws? (1930)
-
A.
Non-Cooperation Movement
-
B.
Civil Disobedience Movement
-
C.
Quit India Movement
-
D.
Swadeshi Movement
Solution
The Civil Disobedience Movement was launched in 1930 to protest against the salt laws.
Correct Answer:
B
— Civil Disobedience Movement
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Q. Which movement was launched by Mahatma Gandhi in 1930 to protest against the salt tax? (1930)
-
A.
Non-Cooperation Movement
-
B.
Civil Disobedience Movement
-
C.
Quit India Movement
-
D.
Swadeshi Movement
Solution
The Civil Disobedience Movement was launched in 1930, prominently featuring the Salt March to Dandi.
Correct Answer:
B
— Civil Disobedience Movement
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Q. Which movement was launched by Mahatma Gandhi in response to the British salt monopoly? (1930)
-
A.
Non-Cooperation Movement
-
B.
Civil Disobedience Movement
-
C.
Quit India Movement
-
D.
Swadeshi Movement
Solution
The Civil Disobedience Movement was launched by Mahatma Gandhi in 1930 to protest against the British salt monopoly.
Correct Answer:
B
— Civil Disobedience Movement
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Q. Which movement was launched in response to the Jallianwala Bagh massacre? (1919)
-
A.
Non-Cooperation Movement
-
B.
Civil Disobedience Movement
-
C.
Quit India Movement
-
D.
Swadeshi Movement
Solution
The Non-Cooperation Movement was launched in response to the Jallianwala Bagh massacre in 1919.
Correct Answer:
A
— Non-Cooperation Movement
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Q. Which movement was launched in response to the Rowlatt Act of 1919? (1919)
-
A.
Civil Disobedience Movement
-
B.
Non-Cooperation Movement
-
C.
Quit India Movement
-
D.
Satyagraha Movement
Solution
The Non-Cooperation Movement was launched in response to the Rowlatt Act.
Correct Answer:
B
— Non-Cooperation Movement
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Q. Which movement was launched in response to the Simon Commission in 1928? (1928)
-
A.
Non-Cooperation Movement
-
B.
Civil Disobedience Movement
-
C.
Simon Go Back Movement
-
D.
Quit India Movement
Solution
The Simon Go Back Movement was launched in response to the Simon Commission in 1928.
Correct Answer:
C
— Simon Go Back Movement
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Q. Which non-metal is a diatomic molecule at room temperature?
-
A.
Oxygen
-
B.
Nitrogen
-
C.
Hydrogen
-
D.
All of the above
Solution
Oxygen, Nitrogen, and Hydrogen are all diatomic molecules at room temperature.
Correct Answer:
D
— All of the above
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Q. Which non-metal is commonly used in fertilizers?
-
A.
Phosphorus
-
B.
Sulfur
-
C.
Chlorine
-
D.
Argon
Solution
Phosphorus is a key component in fertilizers, promoting plant growth.
Correct Answer:
A
— Phosphorus
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Q. Which non-metal is essential for respiration in living organisms? (2020)
-
A.
Oxygen
-
B.
Nitrogen
-
C.
Carbon
-
D.
Hydrogen
Solution
Oxygen is essential for respiration as it is used by organisms to convert food into energy.
Correct Answer:
A
— Oxygen
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Q. Which non-metal is essential for the process of photosynthesis?
-
A.
Oxygen
-
B.
Carbon
-
C.
Nitrogen
-
D.
Hydrogen
Solution
Carbon is essential for photosynthesis as plants convert carbon dioxide into glucose.
Correct Answer:
B
— Carbon
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