✅ Answer Q1: An empire is a collection of many smaller kingdoms ruled by one supreme emperor from a capital city. A kingdom has one territory and one king; an empire has many territories whose kings all submit to a single emperor.

✅ Answer Q2: A tributary is a ruler or state that has submitted to the emperor and pays tribute — gold, grain, livestock or elephants — as a sign of loyalty and acceptance of his overlordship.

✅ Answer Q3: An empire (1) maintains an army, (2) runs an administration to collect taxes and keep law and order, (3) makes laws and issues currency, (4) controls resources like mines and forests, (5) encourages art and learning, and (6) maintains communication networks — roads and river/sea routes.

✅ Answer Q4: Maintaining an army and administration was costly, so empires needed trade wealth. Controlling trade routes increased the quantity and variety of goods, giving more income to producers and more tax revenue to the ruler.

✅ Answer Q5: A guild (śhreṇī) was a powerful association of traders, craftsmen, moneylenders or agriculturists with an elected head. Guilds made their own internal rules, which even the king did not interfere with, and helped members cooperate instead of competing.

✅ Answer Q6: Magadha rose because of its fertile Ganga plains, forests giving timber and elephants, iron from nearby hills (iron ploughs increased farm produce and iron weapons strengthened the army), and the Ganga and Son rivers which helped transport and trade.

✅ Answer Q7: Mahāpadma Nanda founded the Nanda dynasty around the 5th century BCE. It fell because the last emperor, Dhana Nanda, though very rich, oppressed and exploited his people — his unpopularity paved the way for Chandragupta Maurya to conquer the empire.

✅ Answer Q8: After defeating Porus, Alexander’s soldiers were tired and homesick, and they faced fierce resistance from local tribes and rulers. They lost the will to fight and refused to march deeper into India towards the Ganga — forcing Alexander to retreat.

✅ Answer Q9: Satraps were governors of provinces of the Persian and Greek empires, left behind by the overlord (like Alexander) to manage far-off territories. Though only officials, distance from the ruler gave them great power and freedom.

✅ Answer Q10: Around 321 BCE, Chandragupta Maurya overthrew the unpopular Nandas with the guidance of his mentor Kauṭilya, made Paṭaliputra his capital, defeated the Greek satraps in the northwest, and expanded the empire from the northern plains to the Deccan plateau.

✅ Answer Q11: Kauṭilya (Chāṇakya / Viṣhṇugupta) was a teacher at Takṣhaśhila and Chandragupta’s mentor, who wrote the Arthaśhāstra. His saptānga is the idea that a kingdom has seven limbs — king (swāmi), ministers (amātya), territory and people (janapada), forts (durga), treasury (kośha), defence and law (daṇḍa), and allies (mitra).

✅ Answer Q12: After seeing the enormous death and destruction of the Kalinga war, Aśhoka chose to give up violence and adopted the path of peace and non-violence taught by the Buddha. He then devoted himself to dharma and the welfare of his people.

✅ Answer Q13: Edicts are official declarations that Aśhoka had inscribed on rocks and pillars across his empire, mostly in the Prakrit language using the Brahmi script. They encouraged people to follow dharma, announced welfare works like medical care, rest houses, wells and tree planting, and promoted respect among all sects.

✅ Answer Q14: Mauryan cities were well-planned centres of trade and governance with palaces and signposted streets. Most people farmed, growing two crops a year so famines were rare; farmers were protected even in war. Artisans lived in cities, couriers carried messages, houses were wooden (up to two storeys), and people wore cotton garments.

✅ Answer Q15: The Sarnath Lion Capital, which topped a pillar erected by Aśhoka, became India’s national emblem with the motto satyameva jayate (“truth alone triumphs”). Its dharmachakra — the wheel of dharma symbolising the Buddha’s teachings — is at the centre of the national flag.

✅ Answer Q16: Empires decline when regions rebel against heavy tribute, weak successors follow strong emperors, far-off territories break away because the empire is too large, or natural calamities cause economic crises. They are a paradox because they bring political unity and prosperity, yet are created by war and held together by force — making them fragile and unstable over time.