Q. Which layer of the Earth is primarily composed of molten rock?
A.
Crust
B.
Mantle
C.
Outer Core
D.
Inner Core
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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 level of protein structure is characterized by the arrangement of multiple polypeptide chains?
A.
Primary structure
B.
Secondary structure
C.
Tertiary structure
D.
Quaternary structure
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Solution
The quaternary structure of a protein refers to the arrangement and interaction of multiple polypeptide chains.
Correct Answer:
D
— Quaternary structure
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Q. Which level of protein structure is characterized by the overall 3D shape of a single polypeptide chain?
A.
Primary structure
B.
Secondary structure
C.
Tertiary structure
D.
Quaternary structure
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Solution
The tertiary structure of a protein refers to the overall 3D shape of a single polypeptide chain, determined by interactions among side chains.
Correct Answer:
C
— Tertiary structure
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Q. Which linking word best completes the sentence? 'I wanted to go for a walk, _____ it started to rain.'
A.
but
B.
and
C.
so
D.
because
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Solution
'But' is the correct choice as it contrasts the desire to walk with the rain.
Correct Answer:
A
— but
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Q. Which linking word best fits? 'I enjoy hiking; _____, I prefer the mountains over the beach.'
A.
but
B.
and
C.
so
D.
although
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Solution
'And' is appropriate as it adds to the enjoyment of hiking.
Correct Answer:
B
— and
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Q. Which linking word can be used to summarize information? (2023)
A.
In conclusion
B.
Although
C.
Because
D.
Meanwhile
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Solution
'In conclusion' is a linking phrase used to summarize the information presented.
Correct Answer:
A
— In conclusion
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Q. Which linking word is used to introduce an example? (2022)
A.
For instance
B.
Consequently
C.
Nevertheless
D.
In contrast
Show solution
Solution
'For instance' is a linking phrase used to introduce an example.
Correct Answer:
A
— For instance
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Q. Which linking word is used to show cause and effect? (2020)
A.
Although
B.
Because
C.
Meanwhile
D.
In addition
Show solution
Solution
'Because' is a linking word that shows the cause of an action or situation.
Correct Answer:
B
— Because
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Q. Which literary work is considered a significant source of information about the Mauryan Empire?
A.
Arthashastra
B.
Panchatantra
C.
Mahabharata
D.
Ramayana
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Solution
The 'Arthashastra', written by Kautilya (Chanakya), provides detailed insights into the administration and economy of the Mauryan Empire.
Correct Answer:
A
— Arthashastra
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Q. Which logic gate is equivalent to an AND gate followed by a NOT gate?
A.
OR
B.
NAND
C.
NOR
D.
XOR
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Solution
The NAND gate is equivalent to an AND gate followed by a NOT gate, as it inverts the output of the AND gate.
Correct Answer:
B
— NAND
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Q. Which logic gate is represented by the symbol '⊕'?
A.
AND Gate
B.
OR Gate
C.
NAND Gate
D.
XOR Gate
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Solution
The symbol '⊕' represents the XOR gate.
Correct Answer:
D
— XOR Gate
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Q. Which logic gate outputs true only when all inputs are false?
A.
AND
B.
OR
C.
NOR
D.
NAND
Show solution
Solution
The NOR gate outputs true (1) only when all inputs are false (0).
Correct Answer:
C
— NOR
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Q. Which logic gate outputs true only when all inputs are true?
A.
AND
B.
OR
C.
NOT
D.
NAND
Show solution
Solution
The AND gate outputs true only when all its inputs are true.
Correct Answer:
A
— AND
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Q. Which logic gate outputs true only when all its inputs are true?
A.
AND Gate
B.
OR Gate
C.
NOT Gate
D.
NAND Gate
Show solution
Solution
The AND gate outputs true only when all its inputs are true.
Correct Answer:
A
— AND Gate
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Q. Which logic gate outputs true only when both inputs are false?
A.
AND
B.
OR
C.
NAND
D.
NOR
Show solution
Solution
The NOR gate outputs true only when both inputs are false.
Correct Answer:
D
— NOR
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Q. Which macromolecule is primarily responsible for genetic information? (2020)
A.
Proteins
B.
Lipids
C.
Carbohydrates
D.
Nucleic Acids
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Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer:
D
— Nucleic Acids
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Q. Which macromolecule is primarily responsible for storing genetic information? (2020)
A.
Proteins
B.
Carbohydrates
C.
Lipids
D.
Nucleic acids
Show solution
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer:
D
— Nucleic acids
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Q. Which macronutrient is most important for muscle repair and growth?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
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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
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Solution
The G20 Summit was held in India in 2023.
Correct Answer:
A
— G20 Summit
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Q. Which major natural disaster in India led to the establishment of the National Disaster Management Authority? (2001)
A.
Bhopal Gas Tragedy
B.
Kutch Earthquake
C.
Uttarakhand Floods
D.
Cyclone Phailin
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Solution
The Kutch Earthquake in 2001 was a significant event that highlighted the need for a structured disaster management framework, leading to the establishment of the NDMA.
Correct Answer:
B
— Kutch Earthquake
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