Search Previous Year Questions

The correct answer is 'large number of cone cells'

Key Points

• Eagles' Vision:
• Eagles possess extraordinary vision, allowing them to see things from great distances, such as 20 feet away, with remarkable clarity.
• This superior eyesight is primarily due to their large number of cone cells in the retina, which enhances their ability to perceive fine details and colors.
• Cones are photoreceptor cells responsible for color vision and visual acuity, meaning more cones result in sharper and more vivid vision.

Additional Information

• Fixed Eye Sockets:
• Fixed eye sockets provide stability for the eyes but do not directly enhance visual acuity. Eagles need to move their heads to change their field of view.
• Refraction Error of the Eye:
• Refraction errors (like myopia or hyperopia) typically impair vision rather than enhance it. Eagles have minimal refraction error, contributing to their sharp vision.
• Equal Number of Photoreceptor Cells:
• Having an equal number of different types of photoreceptor cells (rods and cones) does not necessarily improve vision. It is the high density of cones in eagles' eyes that makes a significant difference.

Child development is a continuous process of growth and change that occurs from birth to adolescence. It involves physical, cognitive, social, and emotional development. 

Key Points

• The word 'adolescence' is derived from the Latin word 'adolescere,' which means "to grow" or "to mature."
• It reflects the process of development that occurs during this transitional stage between childhood and adulthood.
• During adolescence, individuals experience rapid physical changes, including puberty and the development of secondary sex characteristics.
• They also undergo significant cognitive changes, such as increased abstract thinking, improved problem-solving skills, and the development of a sense of identity.

Hence, the word 'adolescence' derived from the Greek word 'adolescere' which mean mature development.

The correct answer is 'Balanced diet'

Key Points

• Balanced diet:
• A balanced diet includes a variety of foods in the right proportions to provide the necessary nutrients for maintaining health, energy, and overall well-being.
• It typically comprises a mix of carbohydrates, proteins, fats, vitamins, minerals, and water.
• Eating a balanced diet helps in maintaining a healthy weight, reducing the risk of chronic diseases, and promoting overall health.

Additional Information

• Rich diet:
• A rich diet may imply a diet high in certain nutrients or calories but not necessarily balanced or healthy.
• It could lead to an excess intake of certain nutrients while neglecting others, potentially causing health issues.
• Complete diet:
• The term "complete diet" is not commonly used in nutritional science and might be confusing or ambiguous.
• It does not specify the importance of proportion and variety in nutrient intake.
• Diet:
• The term "diet" simply refers to the food and drink regularly consumed by a person.
• It does not inherently imply that the diet is balanced or contains all essential nutrients.

The correct answer is Kolkata.

Key Points

• Variable Energy Cyclotron Centre (VECC):
• VECC is a premier research and development unit of the Department of Atomic Energy, Government of India.
• It is located in Kolkata, West Bengal.
• The center is involved in the design, construction, and operation of cyclotrons for research in nuclear science and technology.
• VECC collaborates with various national and international research institutions.

Additional Information

• Mumbai:
• Mumbai is home to Bhabha Atomic Research Centre (BARC), another significant institution under the Department of Atomic Energy.
• Delhi:
• Delhi houses many central government institutions and research facilities.
• Chennai:
• Chennai is known for the Indira Gandhi Centre for Atomic Research (IGCAR) in Kalpakkam.

The correct answer is 'Mangalyaan'.

Key Points

• Mangalyaan:
• The Mars Orbiter Mission (MOM) is informally known as Mangalyaan, which means "Mars Craft" in Sanskrit.
• It was launched by the Indian Space Research Organisation (ISRO) on November 5, 2013.
• Mangalyaan is India's first interplanetary mission, and it made India the first Asian country to reach Martian orbit and the fourth space agency in the world to do so.
• The mission's primary objective was to develop the technologies required for interplanetary missions.

The correct answer is 'Iran'.

Key Points

• Iran's Zoljanah Launcher:
• Iran has recently announced the successful test of its most powerful launcher to date, named "Zoljanah".
• Zoljanah is a three-stage satellite launcher that utilizes both solid and liquid propellants.
• The test demonstrates Iran's advancing capabilities in space technology, which has raised concerns among various international communities regarding potential military applications.
• The launch is part of Iran’s broader efforts to develop its space program, which includes launching satellites into orbit for various purposes, including communication and research.

The correct answer is 'INS Vikrant'.

Key Points

• INS Vikrant:
• INS Vikrant (IAC-1) is the first indigenously built aircraft carrier of India, marking a significant milestone in India's maritime history.
• It was constructed by Cochin Shipyard Limited (CSL) and commissioned into service in September 2022.
• Named after India's first aircraft carrier**, INS Vikrant (R11),** which played a key role in the 1971 war with Pakistan, this new vessel symbolizes India's growing naval capabilities and self-reliance in defense manufacturing.
• The aircraft carrier is equipped with modern radar systems, air defense systems, and a variety of aircraft, including the MiG-29K fighter jets and various helicopters.

Additional Information

• INS Arihant:
• INS Arihant is India's first indigenous nuclear-powered ballistic missile submarine (SSBN).
• It is a part of the Indian Navy's strategic deterrence capability and forms the underwater leg of India's nuclear triad.
• INS Arighat:
• INS Arighat is the second Arihant-class submarine, also a nuclear-powered ballistic missile submarine (SSBN).
• It enhances India's second-strike capability and strategic deterrence.

The correct answer is '6'.

Key Points

• Capability of Exploring Underwater Vehicles:
• Several countries around the world have developed advanced technologies and capabilities for underwater exploration using remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs).
• These technologies are used for various subsea activities including scientific research, underwater archaeology, deep-sea mining, and military applications.
• India is among these countries, having developed its own underwater vehicles for exploration and subsea activities.
• In total, there are six countries known for having significant capabilities in this field: the United States, Russia, Japan, France, China, and India.

The correct answer is 'Byalalu'.

Key Points

• Indian Deep Space Network (ISDN):
• The Indian Deep Space Network (ISDN) is a network of large antennas and communication facilities that support interplanetary spacecraft missions.
• It is operated by the Indian Space Research Organisation (ISRO).
• The primary function is to track and communicate with Indian space missions, including Mars Orbiter Mission (Mangalyaan) and Chandrayaan missions.
• Byalalu:
• Byalalu is a village located near Bangalore in Karnataka, India.
• The ISDN was established here to take advantage of the remote location, which minimizes radio frequency interference.
• It houses large parabolic antennas, including a 32-meter and an 18-meter antenna used for deep space communication.

The correct answer is 'Gelisols'

Key Points

• Gelisols:
• Gelisols are soils that are permanently frozen, typically found in polar regions and at high elevations.
• These soils contain permafrost within two meters of the soil surface, which significantly affects their characteristics and the types of vegetation they can support.
• Gelisols are important for studying climate change because they contain large amounts of organic carbon that can be released as greenhouse gases when they thaw.

Additional Information

• Histosols:
• Histosols are organic soils often referred to as peat or muck. They form in waterlogged conditions where plant material decomposes slowly.
• Andisols:
• Andisols are volcanic soils formed from volcanic ash and other volcanic materials. They are typically fertile and support a variety of vegetation.
• Spodosols:
• Spodosols are acidic soils typically found under coniferous or boreal forests. They are characterized by a subsurface accumulation of humus and aluminum, with or without iron.