Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 2 History and the Concept of ‘Time’ Notes, Textbook Exercise Important Questions and Answers.

5th Std EVS 2 Digest Chapter 2 History and the Concept of ‘Time’ Textbook Questions and Answers

1. Fill in the blank.

Question a.
The calendar we use today is based on the ______________.
Answer:
The calendar that we use today is based on the Common Era/Christian Era..

Question b.
The period before the Common Era is known as the time ____________.
Answer:
The period before Common Era or Christian Era is known as the Before Christ (BC).

2. Answer the question in one sentence.

Question a.
which scientific methods are used to estimate the age of the layers of soil and the remains found in them?
Answer:
Carbon-14 analysis and Tree-rings analysis are the scientific methods used to estima~e age of the layers of soil and the remains found in them

Question b.
How is the first century of the Common Era written?
Answer:
The first century of the Common Era is written as 1-100 AD.

3. Answer the following question in brief.

Question a.
What is meant by the unilinear division of time?
Answer:

Question b.
What are the units of measuring time?
Answer:

4. Complete the chart given below.

Question 1.
Complete the chart given below.

Answer:

Activity :

Question 1.
Prepare a monthly plan for yourself on the lines of the one given below.

Environmental Studies Part 2 Standard 5th Solutions Chapter 2 History and the Concept of ‘Time’ Additional Important Questions and Answers

Fill in the blanks:

Answer:

Match the columns:

Question 1.

Column ‘A’	Column ‘B’
1. Vardhaman Mahavir	a. 563BC-483BC
2. Sunrise to sunset	b. Smallest unit of time
3. Gautam Buddha	c. Day
4. Sunset to sunrise	d. One year
5. Second	e. 599BC-527BC
6. 100 years	f. Night
7. 12 months	g. A year
8. 1000 years	h. A week
9. Seven days	i. A century
10. Two weeks	j. A fortnight
11. Christian Era	k. A millennium
12. Rajyabhishek Shaka	l. Prophet Muhammad
13. Hijri Era	m. Jesus Christ
14. Shahenshahi Era	n. Parsi Community
15. Parsi Community	o. Chhatrapati Shivaji
16. Indian’s Era	p. Hijri Era
17. Muhammad migrate	q. Shahenshahi Era
	r. Rajyabhishek Shaka
	s. Vikram Samvat

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Answer:

Column ‘A’	Column ‘B’
1. Vardhaman Mahavir	e. 599BC-527BC
2. Sunrise to sunset	c. Day
3. Gautam Buddha	a. 563BC-483BC
4. Sunset to sunrise	f. Night
5. Second	b. Smallest unit of time
6. 100 years	i. A century
7. 12 months	g. A year
8. 1000 years	k. A millennium
9. Seven days	h. A week
10. Two weeks	j. A fortnight
11. Christian Era	m. Jesus Christ
12. Rajyabhishek Shaka	o. Chhatrapati Shivaji
13. Hijri Era	l. Prophet Muhammad
14. Shahenshahi Era	n. Parsi Community
15. Parsi Community	q. Shahenshahi Era
16. Indian’s Era	s. Vikram Samvat
17. Muhammad migrate	p. Hijri Era

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Answer each question in one sentence:

Question 1.
How is the day divided?
Answer:
The day is divided into two parts – day and night.

Question 2.
What are the two movements of the Earth?
Answer:
The two movements of the earth are rotation and revolution.

Question 3.
What is rotation?
Answer:
The movement of the earth around its own axis at a certain speed is called the rotation of the earth.

Question 4.
What is revolution?
Answer:
The movement of the earth around the sun is called ‘revolution of the earth’.

Question 5.
What is one day?
Answer:
The period of day time and the following night together makes one day.

Question 6.
What makes one week?
Answer:
Seven days, Monday to Sunday make one week

Question 7.
What is a fortnight?
Answer:
2 weeks or 14 days make a fortnight.

Question 8.
What makes a month?
Answer:
Four weeks or 30/31 days make a month.

Question 9.
What makes a year?
Answer:
Twelve months make a year.

Question 10.
How is a century completed?
Answer:
One year followed by another year and when 100 years go by, a century is completed.

Question 11.
What is a millennium?
Answer:
When ten centuries, i.e. 1000 years have gone by, a millennium is completed.

Question 12.
What is unilinear division of time?
Answer:
The method of dividing time into day, week, month, year, century and millennium is known as unilinear division of time.

Question 13.
What is Christian Era?
Answer:
This era began in memory of Jesus Christ and so this era is called as Christian Era.

Question 14.
What is common Era?
Answer:
The calendar we use today is based on the Christian era. Since it is commonly followed all over the world, now it is called as ‘Common Era’.

Question 15.
How is the first century of Common Era written?
Answer:
The first 100 years, i.e., the first century of this era is written as years 1 – 100 CE or 1 – 100 AD.

Question 16.
How is the first millennium written?
Answer:
The period of the first millennium of this era is written as, 1 – 1000 CE or 1 – 1000 AD.

Question 17.
What is BCE or BC?
Answer:
The period before the common era is known as the time “Before Common Era (BCE)” or
“Before Christ (BC)”.

Question 18.
How are the years recorded in the BCE or BC period?
Answer:
The years of this period are counted and also written in reverse order.

Question 19.
How is the first century of ‘Before the Common Era period’ written?
Answer:
The first century before the Common Era is indicated as 100 – 1 BC.

Question 20.
How is the first millennium of ‘Before the Common Era period’ written?
Answer:
The first millennium Before the Common Era is indicated as 1000 – 1 BCE.

Question 21.
How is the life time of Vardhaman Mahavir written?
Answer:
The life time of Vardhaman Mahavir is written as 599 BC – 527 BC.

Question 22.
How is the life time of Gautam Buddha written?
Answer:
The life time of Gautam Buddha is written as 563 BC – 483 BC.

Question 23.
Name the units of measuring time.
Answer:
Second, minute, hour, day, week, fortnight, month, year, century and millennium are units of measuring time.

Question 24.
Which is the smallest unit of measuring time?
Answer:
The second is the smallest unit of measuring time.

Question 25.
Which is the most common method of measuring time in different parts of the world?
Answer:
The Common Era or the Christian Era is the most common method of measuring time in different parts of the world.

Question 26.
How is a date written?
Answer:
The date consists of the serial number of that day followed by the name or serial number of the current month and then serial number of the current year.

Question 27.
When does a new era generally commence?
Answer:
It is an age-old custom to start a new era to commemorate a special event.

Question 28.
Which era was started by Shivaji Maharaj?
Answer:
Chhatrapati Shivaji Maharaj started a new era or shaka known as ‘Rajyabhishek Shaka’ in 1674 to commemorate his coronation

Question 29.
Which two eras are used in India?
Answer:
Shalivahan Shaka’ and ‘Vikram Samvat’ are two eras that are used in India.

Question 30.
Who is Prophet Muhammad?
Answer:
Prophet Muhammad is the founder of Islam.

Question 31.
When did Prophet Muhammad start an era?
Answer:
Prophet Muhammad migrated from Mecca to Medina, so, the ‘Hijri Era’ was started to commemorate this event.

Question 32.
Which era is used by the Parsi community in India?
Answer:
The Parsi community in India uses the “Shahenshahi Era”.

Question 33.
What makes up the subject matter of History?
Answer:
The past makes up the subject matter of History

Question 34.
When did our solar system come into being?
Answer:
Our solar system came into being about 4.5 billion years ago

Question 35.
How long ago was our earth formed?
Answer:
Our Earth is a planet in the solar system, so it is presumed that the earth was also formed 4.5 billion years ago.

Question 36.
Which two main periods is the time in History divided?
Answer:
The time in history is divided into two main periods: Pre-historic and Historic period.

Question 37.
What is Pre-historic period?
Answer:
The Pre-historic period is the period for which no written records are available.

Question 38.
What is Historic period?
Answer:
The period for which written records are available from which history is written is known as Historic period’.

Question 39.
What is years before the common era?
Answer:
The events before the beginning of the common era are mentioned as having occurred a certain number of years before the common era.

Question 40.
What are evidences?
Answer:
Evidence is usually in the form of man-made artifacts and fallen structures.

Question 41.
How can we determine the time of the events that took place thousands of years ago?
Answer:
With the help of artifacts and also using scientific methods we can determine the time of the events that took place thousands of years ago.

Give reasons for the following :

Question 1.
Time is divided into periods.
Answer:
i. There are different methods of reckoning time
ii. Time is continuous, but for our convenience we divide time into periods.

Question 2.
The Christian era is also known as the common era.
Answer:

Question 3.
Time in history is divided into two main periods.
Answer:

Question 4.
The earth receives continuous light from the sun, but then too we see light only in day time and nights are dark.
Answer:

Question 5.
When we measure time, we actually measure its length.
Answer:

Answer the following questions in brief :

Question 1.
How are days and nights formed?
Answer:

Question 2.
What is the unilinear division of time?
Answer:

Question 3.
Explain time before the common or Christian era.
Answer:

Question 4.
How do we measure the length of time?
Answer:

Question 5.
How are dating techniques used?
Answer:

Question 6.
What is meant by Prehistoric period?
Answer:

Question 7.
What is meant by Historic period?
Answer:

Glossary :

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