The pituitary gland secretes key hormones that stimulate other glands like the thyroid, adrenals, and gonads.

Young's double-slit experiment provided conclusive evidence for the wave theory of light through observable interference fringes.

Total sum of 5 numbers = 5 × 27 = 135. Sum of 4 numbers = 4 × 25 = 100. Excluded number = 135 - 100 = 35.

The troposphere is the lowest layer of the atmosphere where almost all weather changes and cloud formations take place.

Present continuous active tense ('is explaining') changes to 'is being explained' in passive voice.

The Cabinet Mission of 1946 proposed a complex federal structure comprising provinces grouped into sections, rejecting a sovereign Pakistan.

Formula for interior angle of regular polygon = [(n - 2) × 180°] / n = [(6 - 2) × 180°] / 6 = 720 / 6 = 120°.

Aryabhata was a pioneering mathematician-astronomer of the classical age of Indian mathematics and astronomy during the Gupta dynasty.

Sclerenchyma cells are dead at maturity and possess thick secondary walls impregnated with lignin, providing maximum structural rigidity.

Hirakud Dam is built across the Mahanadi River in Sambalpur district, Odisha.

x = ky => 15 = k(5) => k = 3. Therefore, when y = 12, x = 3 × 12 = 36.

The 42nd Amendment Act, 1976 added Article 51A under Part IV-A, introducing 10 Fundamental Duties (subsequently 11th added in 2002).

Power P = 1 / f (in meters) = 1 / 0.25 = +4 Diopters.

Fiscal deficit measures the total borrowing requirements of the government from all sources to finance its budget gap.

Initial TSA = 6x². New edge = 2x, New TSA = 6(2x)² = 24x², which is 4 times the original surface area.

The Sama Veda is known as the Veda of melodies and chants, providing the foundational roots of Indian classical music.

Malaria is caused by protozoan parasites of the genus Plasmodium, transmitted through the bite of infected female Anopheles mosquitoes.

El Niño is characterized by the unusual warming of surface waters in the eastern tropical Pacific, disrupting normal trade winds and ocean currents.

P = P0(1 + r/100)^2 => 121000 = P0 × (11/10) × (11/10) => P0 = 121000 × (100/121) = 100,000.

Recent recipients of the prestigious Dadasaheb Phalke Award include veteran film icons Waheeda Rehman and Mithun Chakraborty.

Let ages be 4x and 5x. 4x + 5x = 45 => 9x = 45 => x = 5. Age of B = 5x = 25 years.

The Chipko Movement was a forest conservation movement in India where people, notably women led by Gaura Devi, hugged trees to stop commercial logging.

Jharkhand was carved out of southern Bihar in November 2000 and shares the southern border with Bihar.

Vitamin A deficiency leads to poor night vision or night blindness, along with dry eyes.

Pressure P = F / A. If area A is halved (A/2), pressure becomes 2(F/A), meaning pressure is doubled.

J.J. Thomson discovered the electron in 1897 using cathode ray tube experiments.

NITI Aayog evaluates poverty estimates using data collected by the National Statistical Office (NSO) through household consumer expenditure surveys.

Red blood cells contain hemoglobin, an iron-rich protein that binds oxygen molecules and transports them throughout the circulatory system.

Chittaranjan Das and Motilal Nehru formed the Swaraj Party within the Congress to contest council elections and obstruct British policies from within.

Article 368 provides for two types of amendments: (1) by special majority of Parliament, and (2) by special majority plus ratification by half of the state legislatures.

Using the formula (n - 2) × 180° for a quadrilateral (n = 4), sum = (4 - 2) × 180° = 360°.

Rolling friction is significantly smaller than sliding friction, which is why wheels and ball bearings are used extensively.

The Richter scale expresses the magnitude of an earthquake on a logarithmic scale based on seismic wave energy release.

Hydrogen gas has the highest calorific value (approx. 150,000 kJ/kg), making it an extremely potent clean fuel.

After attaining enlightenment, Buddha delivered his first sermon to five disciples at the Deer Park in Sarnath near Varanasi.

Amoeba reproduces asexually through binary fission, splitting its nucleus and cytoplasm into two identical daughter cells.

Glacial erosion straightens and deepens river valleys into U-shaped troughs, unlike V-shaped valleys formed by running water.

Lothal's brick structure is universally recognized by archaeologists as an ancient dockyard linked to the Gulf of Khambhat.

Selling Price = 80% of CP => 240 = 0.8 × CP => CP = 240 / 0.8 = ₹300.

Valmiki National Park is situated in the northernmost West Champaran district of Bihar, bordering Nepal.

The standard acceleration due to gravity near Earth's surface is approximately 9.8 m/s².

The framers of the Indian Constitution borrowed the DPSP from the Irish Constitution of 1937, which had copied it from the Spanish Constitution.

Structural isomerism occurs when compounds share the same chemical formula but differ in the connectivity of their constituent atoms.

Sum of first n natural numbers = n(n+1)/2 = 10(11)/2 = 55. Mean = 55 / 10 = 5.5.

Shah Jahan commissioned the construction of the white marble mausoleum Taj Mahal in Agra during the 17th century.

The light-independent Calvin cycle occurs in the stroma (fluid-filled matrix) of chloroplasts, whereas light reactions occur in thylakoids.

The CAG is appointed by the President of India by warrant under his hand and seal.

Circumference C = 2πr = 88 => 2 × (22/7) × r = 88 => r = 14 cm. Area = πr² = (22/7) × 14 × 14 = 616 cm².

The Chambal River originates in the Vindhya Range and flows north-northeast to join the Yamuna River in Uttar Pradesh.

In graphite, each carbon atom is bonded to three others, leaving one free electron per atom that can move freely, conducting electricity.

Cost-push inflation occurs when overall prices increase due to increases in the cost of wages and raw materials, reducing aggregate supply.

Time = 2.5 hours. Distance = Speed × Time = 60 × 2.5 = 150 km.

The Quit India Movement was launched in August 1942 at the Bombay session of the All-India Congress Committee.

Nitrogenous base pairs (A-T and G-C) in DNA are linked across the strands by specific hydrogen bonds.

Alauddin Khilji strictly regulated market prices for food grains, cloth, and horses to sustain his military forces on modest salaries.

Standard algebraic identity for the square of a trinomial is (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca.

Rabi crops like wheat, barley, and mustard are sown in winter from October to December and harvested in summer from April to June.

The magnetic field inside a long straight current-carrying solenoid is uniform, represented by parallel and equidistant field lines.

Article 280 of the Constitution provides for the establishment of a Finance Commission to define financial relations between the Centre and states.

Using alligation: Cost of water = 0, Cost of milk = 32, Mean price = 28. Ratio = (32 - 28) : (28 - 0) = 4 : 28 = 1 : 7.

The Boycott and Swadeshi resolutions were passed at a historic meeting in Calcutta Town Hall on August 7, 1905.

Each human kidney contains over a million nephrons, which filter blood and form urine.

Neap tides occur when the gravitational pulls of the Sun and Moon are perpendicular to each other relative to Earth (during quarter moons), resulting in lower tidal ranges.

Multiply first equation by 2: 4x + 6y = 26. Subtract second equation: (4x + 6y) - (4x + 5y) = 26 - 23 => y = 3. Substituting y = 3 in 2x + 9 = 13 => 2x = 4 => x = 2.

Judges of the Supreme Court retire at age 65, whereas High Court judges retire at age 62.

Thermal decomposition involves breaking down a single reactant into two or more products upon heating.

Jawaharlal Nehru headed the Interim Government as the Vice-President of the Executive Council, while the British Viceroy remained its President.

Any non-zero number to the power 0 is 1. So 2^0 = 1, 3^0 = 1. (1 + 1) × 25 = 2 × 25 = 50.

The Narmada and Tapti are major peninsular rivers that flow westward through rift valleys into the Arabian Sea.

All freely falling bodies experience a constant downward acceleration due to gravity, independent of their mass.