Q. What is the main active ingredient in most antacids?
A.
Calcium carbonate
B.
Magnesium hydroxide
C.
Aluminum hydroxide
D.
All of the above
Show solution
Solution
Most antacids contain a combination of calcium carbonate, magnesium hydroxide, and aluminum hydroxide to neutralize stomach acid.
Correct Answer:
D
— All of the above
Learn More →
Q. What is the main advantage of asexual reproduction? (2023)
A.
Genetic diversity
B.
Faster population growth
C.
Requires two parents
D.
Involves gametes
Show solution
Solution
Asexual reproduction allows for faster population growth since it does not require finding a mate.
Correct Answer:
B
— Faster population growth
Learn More →
Q. What is the main advantage of sexual reproduction? (2023)
A.
Faster reproduction
B.
Genetic variation
C.
Less energy required
D.
No need for a mate
Show solution
Solution
Sexual reproduction promotes genetic variation, which is beneficial for adaptation and evolution.
Correct Answer:
B
— Genetic variation
Learn More →
Q. What is the main advantage of using a potentiometer over a voltmeter?
A.
It is cheaper.
B.
It provides more accurate measurements.
C.
It is easier to use.
D.
It can measure AC voltages.
Show solution
Solution
A potentiometer provides more accurate measurements because it measures voltage by balancing rather than drawing current from the circuit.
Correct Answer:
B
— It provides more accurate measurements.
Learn More →
Q. What is the main advantage of using a Wheatstone bridge in measurements?
A.
It is very fast
B.
It provides high accuracy
C.
It is very simple
D.
It requires no power supply
Show solution
Solution
The Wheatstone bridge is known for providing high accuracy in measuring unknown resistances.
Correct Answer:
B
— It provides high accuracy
Learn More →
Q. What is the main advantage of using a Wheatstone bridge?
A.
It is simple to construct
B.
It provides high accuracy in measurement
C.
It can measure both AC and DC
D.
It is portable
Show solution
Solution
The Wheatstone bridge is known for its high accuracy in measuring unknown resistances.
Correct Answer:
B
— It provides high accuracy in measurement
Learn More →
Q. What is the main advantage of using biopesticides? (2022)
A.
They are more effective than chemical pesticides
B.
They are environmentally friendly
C.
They are cheaper to produce
D.
They have a longer shelf life
Show solution
Solution
Biopesticides are derived from natural materials and are considered environmentally friendly compared to chemical pesticides.
Correct Answer:
B
— They are environmentally friendly
Learn More →
Q. What is the main advantage of using chromatography for group identification? (2021)
A.
Speed
B.
Cost-effectiveness
C.
High resolution
D.
Simplicity
Show solution
Solution
Chromatography offers high resolution, allowing for the effective separation and identification of complex mixtures.
Correct Answer:
C
— High resolution
Learn More →
Q. What is the main advantage of using CRISPR technology in genetic engineering? (2021)
A.
High precision
B.
Low cost
C.
Speed of modification
D.
All of the above
Show solution
Solution
CRISPR technology offers high precision, low cost, and speed of modification, making it a powerful tool in genetic engineering.
Correct Answer:
D
— All of the above
Learn More →
Q. What is the main advantage of using genetically modified organisms (GMOs) in agriculture? (2021)
A.
Higher nutritional value
B.
Increased resistance to diseases
C.
Lower production costs
D.
All of the above
Show solution
Solution
GMOs can provide higher nutritional value, increased resistance to diseases, and lower production costs.
Correct Answer:
D
— All of the above
Learn More →
Q. What is the main advantage of using genetically modified organisms (GMOs) in food production? (2020)
A.
Higher prices
B.
Longer shelf life
C.
Increased labor costs
D.
More complex farming techniques
Show solution
Solution
GMOs can be engineered to have longer shelf lives, reducing food waste and improving food security.
Correct Answer:
B
— Longer shelf life
Learn More →
Q. What is the main advantage of using genetically modified organisms in food production? (2021)
A.
Longer shelf life
B.
Higher nutritional value
C.
Resistance to pests and diseases
D.
All of the above
Show solution
Solution
Genetically modified organisms can provide multiple advantages including longer shelf life, higher nutritional value, and resistance to pests and diseases.
Correct Answer:
D
— All of the above
Learn More →
Q. What is the main advantage of using hormonal contraceptives? (2023)
A.
They are 100% effective
B.
They can regulate menstrual cycles
C.
They are inexpensive
D.
They require no medical consultation
Show solution
Solution
Hormonal contraceptives can help regulate menstrual cycles in addition to preventing pregnancy.
Correct Answer:
B
— They can regulate menstrual cycles
Learn More →
Q. What is the main advantage of using polymers in manufacturing?
A.
High melting point
B.
Lightweight
C.
High electrical conductivity
D.
Brittleness
Show solution
Solution
Polymers are lightweight, making them advantageous for various manufacturing applications.
Correct Answer:
B
— Lightweight
Learn More →
Q. What is the main advantage of using semaphores in synchronization?
A.
They are easy to implement
B.
They prevent race conditions
C.
They are faster than mutexes
D.
They require less memory
Show solution
Solution
Semaphores are used to prevent race conditions by controlling access to shared resources.
Correct Answer:
B
— They prevent race conditions
Learn More →
Q. What is the main advantage of using transgenic animals in research? (2021)
A.
Increased lifespan
B.
Disease modeling
C.
Higher reproduction rate
D.
Better growth rate
Show solution
Solution
Transgenic animals are primarily used in research for disease modeling, helping scientists understand human diseases.
Correct Answer:
B
— Disease modeling
Learn More →
Q. What is the main advantage of using transgenic plants? (2022)
A.
Higher nutritional value
B.
Increased growth rate
C.
Resistance to herbicides
D.
Faster reproduction
Show solution
Solution
Transgenic plants are engineered to be resistant to herbicides, allowing for easier weed management.
Correct Answer:
C
— Resistance to herbicides
Learn More →
Q. What is the main advantage of using yeast as a host for cloning? (2023)
A.
High growth rate
B.
Eukaryotic post-translational modifications
C.
Simple genome
D.
Low cost
Show solution
Solution
Yeast, being a eukaryote, can perform post-translational modifications similar to higher organisms, making it advantageous for expressing eukaryotic proteins.
Correct Answer:
B
— Eukaryotic post-translational modifications
Learn More →
Q. What is the main aim of the Pradhan Mantri Ujjwala Yojana? (2016)
A.
To provide free electricity to rural households
B.
To provide LPG connections to women from Below Poverty Line (BPL) households
C.
To promote solar energy usage
D.
To enhance rural sanitation
Show solution
Solution
The Pradhan Mantri Ujjwala Yojana aims to provide LPG connections to women from Below Poverty Line (BPL) households to promote clean cooking fuel.
Correct Answer:
B
— To provide LPG connections to women from Below Poverty Line (BPL) households
Learn More →
Q. What is the main application of a Wheatstone bridge?
A.
Measuring capacitance
B.
Measuring inductance
C.
Measuring resistance
D.
Measuring voltage
Show solution
Solution
The primary application of a Wheatstone bridge is to measure unknown resistances.
Correct Answer:
C
— Measuring resistance
Learn More →
Q. What is the main application of CRISPR technology? (2023)
A.
Gene therapy
B.
Gene editing
C.
DNA sequencing
D.
Protein synthesis
Show solution
Solution
CRISPR technology is primarily used for gene editing, allowing precise modifications to DNA.
Correct Answer:
B
— Gene editing
Learn More →
Q. What is the main application of nuclear fusion?
A.
Nuclear power plants
B.
Atomic bombs
C.
Hydrogen bombs
D.
Medical imaging
Show solution
Solution
Nuclear fusion is the process that powers hydrogen bombs and is also the process that fuels stars, including the sun.
Correct Answer:
C
— Hydrogen bombs
Learn More →
Q. What is the main argument presented in the article about the digital divide? (2021)
A.
The digital divide is closing rapidly.
B.
Access to technology is essential for economic growth.
C.
The digital divide only affects rural areas.
D.
Technology is not necessary for modern education.
Show solution
Solution
The article argues that equitable access to technology is crucial for fostering economic opportunities and growth.
Correct Answer:
B
— Access to technology is essential for economic growth.
Learn More →
Q. What is the main argument presented in the article about the importance of biodiversity?
A.
Biodiversity is irrelevant to human survival.
B.
Biodiversity contributes to ecosystem stability and resilience.
C.
Biodiversity only benefits certain species.
D.
Human activities have no impact on biodiversity.
Show solution
Solution
The article argues that biodiversity is crucial for maintaining healthy ecosystems and supporting life on Earth.
Correct Answer:
B
— Biodiversity contributes to ecosystem stability and resilience.
Learn More →
Q. What is the main argument presented in the last paragraph of the passage?
A.
The need for immediate action.
B.
The benefits of inaction.
C.
The importance of public awareness.
D.
The role of government in environmental issues.
Show solution
Solution
The last paragraph emphasizes the urgency of taking immediate action to address environmental challenges.
Correct Answer:
A
— The need for immediate action.
Learn More →
Q. What is the main argument presented in the passage about globalization?
A.
Globalization has only negative effects on local economies.
B.
Globalization fosters cultural exchange and economic growth.
C.
Globalization is a recent phenomenon.
D.
Globalization leads to the loss of cultural identity.
Show solution
Solution
The passage outlines the benefits of globalization, including cultural exchange and economic opportunities.
Correct Answer:
B
— Globalization fosters cultural exchange and economic growth.
Learn More →
Q. What is the main argument presented in the passage about renewable energy?
A.
Renewable energy sources are too expensive to implement.
B.
Renewable energy is essential for sustainable development.
C.
Renewable energy has no significant impact on the economy.
D.
Renewable energy technologies are not yet reliable.
Show solution
Solution
The passage argues that renewable energy is crucial for achieving long-term sustainability and reducing dependence on fossil fuels.
Correct Answer:
B
— Renewable energy is essential for sustainable development.
Learn More →
Q. What is the main argument presented in the passage about the benefits of a plant-based diet?
A.
A plant-based diet is the only way to achieve good health.
B.
Plant-based diets are environmentally sustainable and health-promoting.
C.
Plant-based diets are too restrictive for most people.
D.
Plant-based diets do not provide enough protein.
Show solution
Solution
The passage argues that adopting a plant-based diet can lead to better health outcomes and is more sustainable for the environment.
Correct Answer:
B
— Plant-based diets are environmentally sustainable and health-promoting.
Learn More →
Q. What is the main argument presented in the passage about the benefits of reading?
A.
Reading is a waste of time.
B.
Reading enhances cognitive skills and empathy.
C.
Reading is only beneficial for academic success.
D.
Reading should be replaced by digital media.
Show solution
Solution
The passage argues that reading not only improves cognitive abilities but also fosters empathy and understanding of different perspectives.
Correct Answer:
B
— Reading enhances cognitive skills and empathy.
Learn More →
Q. What is the main argument presented in the passage about the effects of globalization? (2021)
A.
Globalization has only negative effects on local economies.
B.
Globalization fosters cultural exchange and economic growth.
C.
Globalization leads to the loss of cultural identity.
D.
Globalization is a recent phenomenon with no historical precedent.
Show solution
Solution
The passage argues that globalization, while presenting challenges, also fosters cultural exchange and can lead to economic growth.
Correct Answer:
B
— Globalization fosters cultural exchange and economic growth.
Learn More →
Showing 19171 to 19200 of 29090 (970 Pages)