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Answers
Answer:
ANS a.
The Gregorian Calendar is the most widely used calendar in the world today.
ANS b.
coins help us to know about the ruler and the extent of the ruler and also tells about metals used in the coins tells us the economic condition of a particular empire.
ANS c.
the period of time before written records.
the events or conditions leading up to a particular occurrence or phenomenon.
ANS d.
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments. Fossils can tell us a lot about the past.
ANS e.The indo gangetic plains witnessed the rise of big cities as the area of these plains is very flat and fertile which is suitable for the growth of many different crops. The availability of the food, life support is good. Moreover there are many rivers dividing that area
Explanation:
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Explanation:
A) gregorian calender
B) coins helps us to know the ruler and extent of the ruler , metals used in the coins tells us the economic condition
C) the period of time before written records.
D) fossils are in any preserved remains impression or trace of any once living thing at the past geological area.