Q. Which international organization was established to promote economic cooperation in 1944? (1944)
-
A.
World Bank
-
B.
IMF
-
C.
WTO
-
D.
UNESCO
Solution
The International Monetary Fund (IMF) was established in 1944 to promote global economic cooperation.
Correct Answer:
B
— IMF
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Q. Which international treaty aimed at reducing nuclear weapons was signed in 1968? (1968)
-
A.
NPT
-
B.
CTBT
-
C.
START
-
D.
INF
Solution
The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) was signed in 1968.
Correct Answer:
A
— NPT
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Q. Which is the longest river in India?
-
A.
Ganges
-
B.
Brahmaputra
-
C.
Yamuna
-
D.
Godavari
Solution
The Ganges is considered the longest river in India, flowing over 2,500 kilometers.
Correct Answer:
A
— Ganges
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Q. Which is the smallest state in India by area? (2020)
-
A.
Goa
-
B.
Sikkim
-
C.
Tripura
-
D.
Nagaland
Solution
Goa is the smallest state in India by area, covering approximately 3,702 square kilometers.
Correct Answer:
A
— Goa
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Q. Which layer of the Earth is directly beneath the crust?
-
A.
Mantle
-
B.
Outer Core
-
C.
Inner Core
-
D.
Lithosphere
Solution
The layer directly beneath the Earth's crust is the mantle.
Correct Answer:
A
— Mantle
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Q. Which layer of the Earth is liquid? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Outer Core is the only layer of the Earth that is in a liquid state.
Correct Answer:
C
— Outer Core
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Q. Which layer of the Earth is primarily composed of iron and nickel? (2020)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Outer Core is primarily composed of molten iron and nickel, which is responsible for Earth's magnetic field.
Correct Answer:
C
— Outer Core
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Q. Which layer of the Earth is primarily composed of molten rock?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle is primarily composed of molten rock and is located between the crust and the outer core.
Correct Answer:
B
— Mantle
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Q. Which layer of the Earth is responsible for generating the Earth's magnetic field? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The movement of liquid iron in the Outer Core generates the Earth's magnetic field.
Correct Answer:
C
— Outer Core
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Q. Which layer of the Earth is responsible for tectonic activity?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Earth's crust is where tectonic activity occurs, as it is divided into tectonic plates.
Correct Answer:
A
— Crust
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Q. Which layer of the Earth is responsible for tectonic plate movement? (2019)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle, particularly the asthenosphere, is responsible for the movement of tectonic plates.
Correct Answer:
B
— Mantle
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Q. Which layer of the Earth is responsible for the generation of the Earth's magnetic field?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The movement of molten iron in the outer core generates the Earth's magnetic field.
Correct Answer:
C
— Outer Core
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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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