Question

1. Fill in the blanks.
(b) What are the units of measuring
time?
4. Complete the chart given below.
Time in History
(a) The calendar we use today is based
on the
(b) The period before the Common Era
is known as the time et le
2. Answer each question in one sentence.
(a) Which scientific methods are used to
estimate the age of the layers on soil
and the remains found in them?
(b) How is the first century of the
Common Era written?
No written records
available
Written records
available
the
following
questions
3. Answer
in brief.
(a) What is meant by the unilinear
division of time?​

Answer 1

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Answer 2

Answer:

1. b) seconds, hours, minutes, years, days, hours, there are many. In history, it is Years.

4. a) Gregorian calender

b) BC (Before Christ) or Ancient Era