UPSC 2023 Prelims Questions with Answers

Explanation

Statement 1 is incorrect: The concept of stupa originates from pre-Buddhist burial mounds in India which were used for funerary purposes such as burial mounds called ’Megalithic cairns’. Buddhism adopted and transformed these existing structures into significant religious monuments. While the architectural form of the Stupa was adapted and refined by Buddhists, its origins are not exclusively Buddhist.

Statement 2 is correct: Stupas were primarily built to serve as repositories of sacred relics. These relics could include the ashes or bodily remains of the Buddha, his disciples, or other revered figures. Example: the Dhamek Stupa at Sarnath (Uttar Pradesh) is believed to mark the spot where the Buddha delivered his first sermon. The relics were placed in a small chamber called the ’harmika’ at the center of the stupa, making it a focal point for veneration and pilgrimage.

Statement 3 is correct: Stupas serve both votive and commemorative functions often constructed as acts of reverence and offerings to the Buddha or other enlightened figures. They are built to honor important events, individuals, or historical locations. Stupas also function as centers of devotion, meditation, and pilgrimage. For example, the Dhamek Stupa at Sarnath commemorates the Buddha’s first sermon.

Explanation

The Charter Act of 1833 marked the final step towards the centralization of British power in India. It elevated the Governor-General of Bengal to the position of Governor-General of India, granting him full civil and military authority over the entire British-ruled territory in India, with Lord William Bentinck becoming the first Governor-General of India.

Explanation

Amaravati in Andhra Pradesh holds historical significance as the site of ancient Dhanyakataka, a prominent town in the Deccan region of the later Satavahanas, as recorded in numerous inscriptions. This area also housed a significant Buddhist settlement. According to some Tibetan scriptures Dhanyakataka is the place where early Kalachakra tradition took off. Kalachakra is a Buddhist tantric practice. It was a significant hub of Mahayana Buddhism and was associated with the Mahasanghika sect. The famous Amaravati Stupa, one of the largest Buddhist stupas in India, is located near this site. Options (b), (c) and (d) are incorrect:

Gandhara (Pakistan-Afghanistan region) was a center of Gandhara art and Mahayana Buddhism. Kalinga (Odisha) was significant for Ashoka’s Buddhist transformation but not specifically for the Mahasanghikas. Magadha (Bihar) was the heartland of early Buddhism but not linked to Dhanyakataka.

Explanation

Korkai, Poompuhar, and Muchiri were prominent ancient port cities in South India that played a crucial role in maritime trade. Korkai: Korkai, situated in the Thoothukudi district of Tamil Nadu, emerged as a significant port city during ancient times, notably flourishing during the era of Tamil Sangam literature. It served as the primary port for the Pandya Kingdom during this period. Poompuhar: Alternatively known as Kaveripattinam, it stands out as an ancient port city with a vibrant maritime trading legacy. Positioned on the banks of the Kaveri River in the Mayiladuthurai district of Tamil Nadu, it served as the primary port for the esteemed Chola Kingdom. Muchiri: Muchiri, alternatively referred to as Muziris, stood as an ancient port city situated in what is now Kerala, close to the town of Kodungallur. It held substantial importance as a trading hub within the Indian Ocean trade network throughout the ancient and medieval eras. Tondi and Muchiri emerged as pivotal ports within the realm of the Chera kingdom. Hence, all the three sites mentioned were well known as Ports in ancient South India.

Explanation

Vatakkiruttal, also known as Vadakiruthal or Vadakiruttal, was particularly prevalent during the Sangam period (3rd century BCE to 2nd Century CE). Tamil Kings, in a bid to uphold their honor and prestige, were willing to face death by fasting, a practice known as "Vatakkiruttal."

Explanation

In modern times, The Doctrine of ‘Due Process of Law’ has its origins in the USA Constitution. The due process of law doctrine not only examines whether a law exists to deprive a person of life or liberty but also assesses its fairness, justice, and non-arbitrariness. Unlike "Procedure established by law," where the judiciary focuses only on the legality and competence of the legislation, the Supreme Court, in the case of due process, also evaluates the law’s rationale and reasonableness. While "Due Process" primarily concerns legal procedures, it also emphasizes fairness and justice in law enforcement, aligning with the principles of natural justice, such as the right to a fair hearing, the right to be heard, and the right to an impartial tribunal.

Explanation

The Constitution of India is a foundational document outlining the basic laws, principles, and structure of the state, guiding all government actions. It serves as a legal, political, and social instrument, acting as the supreme law under which all regulations and institutions function. The Constitution defines citizens’ rights, ensuring they are protected from infringement by the state. Politically, it establishes, distributes, and limits government power, while socially, it reflects shared values and a civic vision for the state.

Explanation

Option (a) is incorrect: Though it is accurate that the equator receives greater direct sunlight in comparison to the poles, the disparity in insolation is not as substantial as tenfold. The variance in insolation between the equator and poles predominantly arises from the curvature of the Earth and the in-clination of its axis, causing sunlight to strike different latitudes at varying angles. Instead of a tenfold difference, the actual variation is estimated to be around 2.5 times.

Option (b) is incorrect: Insolation denotes the entirety of so-lar radiation reaching the Earth’s surface, encompassing a wide range of electromagnetic radiation. Although infrared radiation constitutes a substantial portion (about 49 %) of solar radiation, it does not represent two-thirds of the insolation. Insolation comprises visible light, ultraviolet (UV) radiation, and various other wavelengths along-side infrared radiation.

Option (c) is correct: The atmosphere warms up by absorbing longwave radiation emitted from the Earth’s surface, mainly in the form of infrared radiation. Water vapor is a strong absorber of infrared radiation. In the lower atmosphere, where its concentration is higher, it absorbs a significant portion of the Earth’s emitted infrared radiation.

Option (d) is incorrect: Infrared radiation is not part of the visible range, infrared radiation has wavelengths longer than those of visible light and is not perceptible to the human eye.

Explanation

Statement-I is incorrect: The tropical rainforest occurs near the equator and close to the tropics. Thus it receives heavy rainfall throughout the year. The heavy rain causes intense leaching of the soil which increases the acidity of the soil. Due to increased acidity, there is an issue of less nutrient absorption from the soil. Thus the claim that tropical rain forests are rich in nutrients is inappropriate.

Statement II is correct: As the tropical rainforest lies in a region of heavy rainfall and near to tropics, thus the climate here is hot and humid. This causes the rapid decomposition of the dead organic material present in the soil. Hence, Statement-I is incorrect, but Statement-II is correct.

Explanation

Statement-I is incorrect: The temperature contrast between continents and oceans is greater during winter than in summer. The reason for this is:

In summer, the land heats up faster than water due to its lower specific heat capacity. However, both the land and oceans are warm, so the temperature difference is relatively smaller. In winter, land cools down more rapidly than water because water has a higher specific heat capacity. This leads to a larger temperature contrast between the cooler land and relatively warmer oceans. Statement-II is correct: Specific heat is the amount of heat energy it takes to raise or lower the temperature of 1 gram of a sub-stance by 1°Celsius. The specific heat of water is greater than that of dry soil, thus, water absorbs and releases heat more slowly than land.