The question asks for the main cause of different seasons on Earth. We need to evaluate each option based on our understanding of Earth's movements and their effects on climate.
Correct Option: D) Earth's tilt and revolution around the Sun
This option correctly identifies the two crucial factors responsible for the Earth's seasons. The axial tilt ensures that different parts of the Earth are exposed to varying intensities of sunlight throughout the year, and the revolution around the Sun ensures that this exposure changes cyclically.
The question asks to identify the districts in Rajasthan where the Desert National Park is located. This requires knowledge of the geographical distribution of national parks in Rajasthan.
Correct Option: A) The Desert National Park is one of the largest national parks in India, covering an area of about 3162 sq km. It is primarily located in the districts of Jaisalmer and Barmer in Rajasthan. This park is a prime example of the Thar Desert ecosystem and is crucial for the conservation of desert wildlife, particularly the critically endangered Great Indian Bustard.
The question asks to identify the biochemist who received the Nobel Prize in 1958 for their work on protein structure, specifically insulin. This requires knowledge of significant scientific achievements and Nobel laureates in biochemistry.
Correct Option: A) Frederick Sanger was awarded the Nobel Prize in Chemistry in 1958 for his work on the structure of proteins, especially for the determination of the structure of insulin. His pioneering method for sequencing amino acids in proteins laid the foundation for understanding protein structure and function.
The question asks to identify the Schedule of the Indian Constitution that specifies the forms of oath and affirmation for various constitutional offices. This requires knowledge of the contents of the Schedules of the Indian Constitution.
D) Third Schedule: This Schedule contains the forms of oaths and affirmations for various constitutional offices and functionaries. These include the Union Ministers, Members of Parliament, Judges of the Supreme Court, the Comptroller and Auditor-General of India, State Ministers, Members of the State Legislature, and Judges of the High Courts.
The question asks to identify the physicist who predicted the existence of the neutrino in 1931 to explain the continuous energy spectrum observed in beta decay, thereby preserving the conservation laws of energy and momentum.
B) Wolfgang Pauli is credited with predicting the existence of the neutrino in 1931 to account for the continuous energy spectrum of electrons in beta decay, thereby preserving the conservation laws of energy and momentum.
The question asks to identify the index that measures a country's human development by combining life expectancy, education, and per capita income. We need to evaluate each option based on its definition and components.
B) Human Development Index (HDI) — The Human Development Index (HDI) is specifically designed to measure a country's human development by combining indicators of life expectancy, education (mean and expected years of schooling), and per capita income (GNI per capita).
The question asks to identify the Articles of the Indian Constitution that specifically deal with the establishment of Tribunals for administrative and other matters. This requires knowledge of the constitutional provisions related to tribunals.
A) Articles 323A and 323B are the specific Articles of the Indian Constitution that deal with the establishment of Tribunals for administrative and other matters, respectively. These were inserted into the Constitution by the 42nd Amendment Act of 1976.
The question asks to identify which plateau is NOT part of the Patland series. This requires knowledge of the geographical classification of plateaus in India, specifically those associated with the Chota Nagpur Plateau region.
Correct Option: B) Deccan Plateau
This question tests knowledge of recent defence procurement news. Candidates are expected to be aware of significant contracts signed by India's Ministry of Defence, especially concerning major platforms like fighter jets.
C) 12 — In December 2024, the Indian Ministry of Defence signed a contract with HAL for the procurement of 12 additional Su-30MKI fighter aircraft for the Indian Air Force. This deal is part of efforts to boost the IAF's combat capabilities and replace aircraft lost in accidents.
The question asks for the specific venue in India where the World Health Summit (WHS) Regional Meeting 2025 was hosted for the first time. This requires knowledge of recent major international events held in India and their venues.
Correct Option: B) Bharat Mandapam, New Delhi
The World Health Summit (WHS) Regional Meeting 2025 was hosted at Bharat Mandapam, New Delhi. This marks the first time the WHS Regional Meeting was held in India, highlighting India's growing role in global health discussions. Bharat Mandapam is a state-of-the-art convention centre that has hosted several high-profile international events, including the G20 Summit in 2023.