Q. Which of the following is a function of system software? (2019)
A.
Word processing
B.
Database management
C.
File management
D.
Web browsing
Show solution
Solution
File management is a function of system software, which helps manage files on a computer.
Correct Answer:
C
— File management
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Q. Which of the following is a function of the cell membrane? (2022)
A.
Energy production
B.
Regulating entry and exit of substances
C.
Protein synthesis
D.
Photosynthesis
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Solution
The cell membrane regulates the entry and exit of substances, maintaining homeostasis within the cell.
Correct Answer:
B
— Regulating entry and exit of substances
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Q. Which of the following is a function of the endoplasmic reticulum?
A.
Energy production
B.
Synthesis of lipids and proteins
C.
Storage of genetic information
D.
Cell division
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Solution
The endoplasmic reticulum is involved in the synthesis of lipids and proteins.
Correct Answer:
B
— Synthesis of lipids and proteins
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Q. Which of the following is a function of the gastric juice? (2023)
A.
Neutralizes stomach acid
B.
Digests carbohydrates
C.
Kills bacteria
D.
Absorbs nutrients
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Solution
Gastric juice contains hydrochloric acid, which helps kill bacteria in the stomach.
Correct Answer:
C
— Kills bacteria
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Q. Which of the following is a function of the kidneys? (2023)
A.
Regulation of blood pH
B.
Production of red blood cells
C.
Regulation of blood pressure
D.
All of the above
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Solution
The kidneys perform multiple functions including regulation of blood pH, production of erythropoietin for red blood cell production, and regulation of blood pressure.
Correct Answer:
D
— All of the above
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Q. Which of the following is a function of the large intestine? (2022)
A.
Digestion of proteins
B.
Absorption of nutrients
C.
Formation of feces
D.
Secretion of enzymes
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Solution
The large intestine is responsible for the formation of feces and the absorption of water.
Correct Answer:
C
— Formation of feces
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Q. Which of the following is a function of the lymphatic system? (2023)
A.
Transporting oxygen
B.
Removing excess fluid from tissues
C.
Producing hormones
D.
Digesting food
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Solution
The lymphatic system helps to remove excess fluid from tissues, returning it to the bloodstream and playing a role in immune function.
Correct Answer:
B
— Removing excess fluid from tissues
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Q. Which of the following is a function of the Parliament?
A.
Making laws
B.
Conducting elections
C.
Appointing judges
D.
Managing state finances
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Solution
Making laws is one of the primary functions of the Parliament.
Correct Answer:
A
— Making laws
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Q. Which of the following is a function of the plasma membrane?
A.
Energy production
B.
Regulation of cell division
C.
Selective permeability
D.
Protein synthesis
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Solution
The plasma membrane is selectively permeable, controlling the entry and exit of substances.
Correct Answer:
C
— Selective permeability
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Q. Which of the following is a function of the respiratory system? (2021)
A.
Gas exchange
B.
Hormone production
C.
Nutrient absorption
D.
Waste excretion
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Solution
The primary function of the respiratory system is gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled.
Correct Answer:
A
— Gas exchange
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Q. Which of the following is a function of the stomach? (2022)
A.
Absorption of nutrients
B.
Secretion of hydrochloric acid
C.
Production of bile
D.
Digestion of carbohydrates
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Solution
The stomach secretes hydrochloric acid, which aids in digestion and creates an acidic environment for enzymes.
Correct Answer:
B
— Secretion of hydrochloric acid
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Q. Which of the following is a function of the United Nations Economic and Social Council (ECOSOC)? (1945)
A.
To maintain international peace
B.
To promote social and economic development
C.
To oversee international law
D.
To manage humanitarian aid
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Solution
The United Nations Economic and Social Council (ECOSOC) is responsible for promoting social and economic development.
Correct Answer:
B
— To promote social and economic development
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Q. Which of the following is a Fundamental Duty as per the Indian Constitution?
A.
To promote harmony and the spirit of common brotherhood
B.
To vote in elections
C.
To pay taxes
D.
To follow the law
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Solution
Article 51A of the Indian Constitution lists the Fundamental Duties, including the duty to promote harmony and the spirit of common brotherhood.
Correct Answer:
A
— To promote harmony and the spirit of common brotherhood
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Q. Which of the following is a Fundamental Duty of every citizen of India?
A.
To vote in elections
B.
To promote the spirit of common brotherhood
C.
To serve in the armed forces
D.
To pay income tax
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Solution
Promoting the spirit of common brotherhood among all the people of India is a Fundamental Duty under Article 51A.
Correct Answer:
B
— To promote the spirit of common brotherhood
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Q. Which of the following is a fundamental duty under the Indian Constitution? (2019)
A.
To vote in elections
B.
To pay taxes
C.
To promote harmony
D.
To serve in the army
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Solution
Promoting harmony and the spirit of common brotherhood is one of the fundamental duties listed in Article 51A of the Constitution.
Correct Answer:
C
— To promote harmony
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Q. Which of the following is a fundamental force in nature? (2020)
A.
Electromagnetic force
B.
Frictional force
C.
Tension force
D.
Normal force
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Solution
The electromagnetic force is one of the four fundamental forces in nature, alongside gravitational, strong nuclear, and weak nuclear forces.
Correct Answer:
A
— Electromagnetic force
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Q. Which of the following is a fundamental quantity? (2020)
A.
Mass
B.
Velocity
C.
Force
D.
Energy
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Solution
Mass is a fundamental quantity in the SI system.
Correct Answer:
A
— Mass
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Q. Which of the following is a Fundamental Right that can be suspended during a national emergency?
A.
Right to Equality
B.
Right to Freedom
C.
Right against Exploitation
D.
Right to Constitutional Remedies
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Solution
The Right to Constitutional Remedies can be suspended during a national emergency as per Article 359 of the Indian Constitution.
Correct Answer:
D
— Right to Constitutional Remedies
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Q. Which of the following is a genetically modified crop? (2019)
A.
Bt cotton
B.
Wheat
C.
Rice
D.
Barley
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Solution
Bt cotton is a genetically modified crop that has been engineered to express a bacterial protein that is toxic to certain pests.
Correct Answer:
A
— Bt cotton
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Q. Which of the following is a genetically modified organism (GMO)? (2019)
A.
Bt cotton
B.
Organic wheat
C.
Wild rice
D.
None of the above
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Solution
Bt cotton is a genetically modified organism that has been engineered to express a bacterial toxin for pest resistance.
Correct Answer:
A
— Bt cotton
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Q. Which of the following is a good conductor of heat?
A.
Wood
B.
Plastic
C.
Copper
D.
Glass
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Solution
Copper is a good conductor of heat.
Correct Answer:
C
— Copper
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Q. Which of the following is a good practice for improving reading speed?
A.
Reading word by word
B.
Using a pointer or finger
C.
Reading aloud
D.
Taking frequent breaks
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Solution
Using a pointer or finger can help improve reading speed by guiding the eyes along the text.
Correct Answer:
B
— Using a pointer or finger
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Q. Which of the following is a greenhouse gas? (2020)
A.
Oxygen
B.
Nitrogen
C.
Carbon dioxide
D.
Hydrogen
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Solution
Carbon dioxide is a greenhouse gas that contributes to the greenhouse effect and global warming.
Correct Answer:
C
— Carbon dioxide
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Q. Which of the following is a heavy metal that can cause environmental pollution?
A.
Iron
B.
Lead
C.
Calcium
D.
Sodium
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Solution
Lead is a heavy metal that can accumulate in the environment and is toxic to living organisms.
Correct Answer:
B
— Lead
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Q. Which of the following is a heavy metal that poses environmental hazards?
A.
Sodium
B.
Calcium
C.
Lead
D.
Potassium
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Solution
Lead is a heavy metal that poses significant environmental and health hazards.
Correct Answer:
C
— Lead
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Q. Which of the following is a hydrogen compound that acts as a reducing agent?
A.
H2O
B.
H2S
C.
HCl
D.
H2O2
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Solution
Hydrogen sulfide (H2S) acts as a reducing agent.
Correct Answer:
B
— H2S
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Q. Which of the following is a hydrogen compound?
A.
H2O
B.
CO2
C.
NaCl
D.
O2
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Solution
Water (H2O) is a compound that contains hydrogen.
Correct Answer:
A
— H2O
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Q. Which of the following is a ketone?
A.
Propionaldehyde
B.
Butanal
C.
Acetone
D.
Formaldehyde
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Solution
Acetone (CH3COCH3) is a ketone.
Correct Answer:
C
— Acetone
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Q. Which of the following is a key argument made by the author?
A.
Climate change is a hoax.
B.
Individual actions can lead to significant change.
C.
Government policies are ineffective.
D.
Technology has no role in solving climate issues.
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Solution
The author argues that individual actions, when combined, can lead to significant changes in addressing climate change.
Correct Answer:
B
— Individual actions can lead to significant change.
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Q. Which of the following is a key benefit of team formation in a workplace? (2023)
A.
Increased individual workload.
B.
Enhanced problem-solving capabilities.
C.
Reduced need for communication.
D.
Greater focus on individual achievements.
Show solution
Solution
Team formation enhances problem-solving capabilities by combining diverse skills and perspectives.
Correct Answer:
B
— Enhanced problem-solving capabilities.
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