Answer: D) Bangalore Explanation:

Answer: B) Isopropylcyclohexane Explanation:

Answer: A) Telangana Explanation:

Answer: A) Taj Mahal Explanation: Iconic attraction of India Taj Mahal has emerged as the 5th most popular landmark in the world and 2nd in Asia, according to the online travel portal TripAdvisor’s ‘Travellers’ Choice Awards for Landmarks. Globally, Angkor Wat in Cambodia, Sheikh Zayed Grand Mosque Center in Abu Dhabi, Mezquita Cathedral de Cordoba in Spain, and St Peter’s Basilica in Italy, bagged the first four ranks respectively. Whereas, the top 10 landmarks in Asia has been topped by Angkor Wat, followed by Taj Mahal on the second place. Apart from this, Taj Mahal has also ranked first in the list of popular landmarks in India, followed by AmberFort, Jaipur; Swaminarayan Akshardham, New Delhi, etc.

Answer: D) 17 April Explanation: World hemophilia day is observed globally on 17 April.

Answer: D) Delhi Explanation: By adhering to the green building norms for its residential colonies, the Delhi metro Railway Corporation (DMRC) has become the world's first completely green metro. The Indian Green Building Council (IGBC) awarded the Delhi metro the platinum rating for adhering to the green building norms for its 10 residential colonies.

Feudalism was the dominant social system in medieval Europe, in which the nobility held lands from the Crown in exchange for military service, and vassals were in turn tenants of the nobles, while the peasants were obliged to live on their lord's land and give him homage, labour, and a share of the produce, notionally in exchange for military protection. Feudalism was a combination of legal and military customs in medieval Europe that flourished between the 9th and 14th centuries.Feudalism was based on the division of land by the king to nobles and vassals in return for their military service under the Feudal Levy. The land was the main source of the economy and was dependent on the peasants who worked on the land. The reasons for the decline of Feudalism during the Medieval period of the Middle Ages included: The Crusades and travel during the Middle Ages opened new trade options to EnglandEngland started to move from land-based economy to a money-based economy.   The Black Death - this reduced the population of England by one third. Labour became a valuable commodity.   The Peasants Revolt - Peasants realized their worth and demanded changes. Charters were granted but ignored by nobles.   More trade saw the growth of more towns.   Peasants moved away from the country into towns they were eventually allowed to buy their freedom.   The land was rented and the rights of lords over labor decreased. Armed men were paid a wage and Medieval warfare was financed by taxes and loansNobles became weaker - the Kings took back their lands and power.   A centralized government was established.

Answer: B) Indian Institutes of Engineering Science Technology Explanation: The Indian Institute of Engineering Science and Technology (IIEST) has successfully created the country’s first smart grid project, which will generate power from renewable sources of energy.  The project will soon be inaugurated by President Pranab Mukherjee, IIEST Director Prof Ajoy Kumar Roy. The smart grid will be synchronised to generate power from solar, wind and vegetable waste resources, depending on the weather conditions and availability of waste products. It is the first of its kind in the country.