(i) Children should be treated as individuals with fundamental human rights. Children are vulnerable.
(ii) There are root causes such as poverty, gender discrimination, broken families, behind the sale or trafficking of children.
(iii) Children are subjected to sale or trafficking for various reasons - economic exploitation, sexual exploitation, sexual abuse, drug trafficking and child labour. So children need special attention.

(i) The metals such as silver and gold gained importance gradually all over the world.
(ii) So, these metals were used as standard value in the exchange of goods.
(iii) This was called as natural money

(i) Terrestrial biomes is a group ofliving organisms that live and interact with one another on land.
(ii) They are mainly determined by temperature and rainfall.
(iii) Some of the major terrestrial biomes of the world are
a. Tropical Forest Biomes
b. Tropical Savanna Biomes
c. Desert Biomes
d. Temperate Grassland Biomes and
e. Tundra Biomes

(i) The Earth's water is not static.
(ii) It is always in motion.
(iii) This continuous movement of water on, above and below the earth's surface is called the Hydrological Cycle.
(iv) The three major processes involved in the water cycle are evaporation, condensation and precipitation.

(i) Martin Luther rejected the belief that ceremonies and penances would lead to salvation.
(ii) He argued that it was by faith alone that one could attain salvation.
(iii) The grace of God would be bestowed by the divine will alone and not by the deeds of the people.
(iv) Further, the Bible could be read and interpreted by all and not by the Church alone.
(v) Thus, he rejected the role of the Church as an intermediary between the individual and God.

The first ten years of the 1300 AD(CE) Alauddin Khalji's slave and commander Malik Kafur was sent on military expedition to south India.

(i) The king, supposed to represent God on earth was at the head of the feudal regime.
(ii) Immediately after him were the great nobles, known as dukes, counts, earls.
(iii) The king gives the land to the land lords.
(iv) The land lords get the land and accept to fight for the king.
(v) The land lords divide the land and distribute it to the viscounts or barons.
(vi) Last in this order were the knights, whose fiefs could not be divided.
(vii) At the bottom were the villeins or serfs.

(i) Carthage sent a general named Hannibal.
(ii) He defeated the Roman army and made a great part of Italy a desert.
(iii) In the second Punic War, Fabius confronted Hannibal and defeated him in the Battle of Zama.
(iv) Pursued by the Roman army, Hannibal ended his life by poisoning himself.

(i) Prisoners of war were enslaved in Rome.
(ii) Big landlords bought slaves cheaply and used them to cultivate their estate.
(iii) The slave population grew and by the 1^st century BC(BCE) there were two million.
(iv) Slave labour led to the impoverishment of free labour.
(v) Many poor peasants had to abandon their children who also ended up in the slave markets.

(i) All of the organisms in the sea are adapted to salt water. If they were suddenly immersed in fresh water, too much water would diffuse into their bodies and they would die.
(ii) The global ecosystem would collapse, and the oceans and atmosphere would eventually revert to their composition before the evolution of photosynthesis: Almost no oxygen and lots of carbon dioxide.
(iii) The ocean currents will be completely disturbed. Hence it will trigger profound climatic changes at the global scale.

(i) When money replaced the barter system, a lot of practical issues were solved.
(ii) Money acts as a medium of exchange, a unit of measurement, a store of value and a standard of deferred payments. 
(iii) It plays an important role in transactions.
(iv) Money should be the common standard unit of calculating a country's total consumer goods, products, services, etc.
(v) For example if a book costs Rs.50, it means the price of the book is equal to 50 units of money.
(vi) Money is used to measure and record financial transactions in a country.

(i) Romans followed new arch techniques which allowed the construction of aqueducts, Colosseums, basilicas and amphitheatres. Not only have many of these structures lasted for thousands of years, but the techniques are still in use today.
(ii) The system of Republic followed by Romans served as a model for others.
(iii) The Romans were also skilled at making solid long-lasting forms of concrete.
(iv) The Romans enjoyed entertainment such as chariot races, gladiator battles, plays at the theatre etc., some of them are enjoyed even today.
(v) Their roads were well engineered, designed to last and allowed for fast travel across the empire.
(vi) The Roman Emperor Augustus started the first courier service.
(vii) Roman law included all facets of life in the ancient empire. The Romans helped shape best practice in the legal system.
(viii) Roman Emperors like Trajan established social welfare schemes.
(ix) They had a very good knowledge about medical tools.
(x) The Roman were greatly admired for their city planning.
(xi) The Roman culture was the foundation of western culture and linguistics which on its turn was spread all around the world.

The Arabian sea nestled up against the dry middle East, appears much saltier than the neighbouring Bay of Bengal which gets showered by intense monsoon rains and receives fresh water discharges from the Ganges and other large rivers.

(i) The Northern Hemisphere holds 61% of land.
(ii) The Southern Hemisphere holds 81% of water. .
(iii) It is because of this pattern of land and water distribution, the Northern hemisphere is called as the land hemisphere and the Southern hemisphere is called as the water hemisphere.

This layer on earth encomposses the Lithosphere, Hydrosphere and Atmosphere. Biosphere is made up of different eco-systems.

i) Mythical geneologies were collected by Col. Mackenzie.   

(iii) is correct.