Look at the diagram showing the positive feedback mechanism on page 13. Can you list the inputs that went into tool making? What were the processes that were strengthened by tool making?

NCERT - Themes in World History

Book: NCERT - Themes in World History

Chapter: 1. From the Beginning of Time

Subject: Social Science - Class 11^th

Q. No. 1 of Exercises

Listen NCERT Audio Books - Kitabein Ab Bolengi

1

Look at the diagram showing the positive feedback mechanism on page 13. Can you list the inputs that went into tool making? What were the processes that were strengthened by tool making?

A. The inputs that went into tool making:

(i) Increase in size and capacity of the brain

(ii) Hands freed for using tools and carrying infants, objects, etc.

(iii) Visual surveillance, long distance while foraging and hunting.

B. The processes that were strengthened by toolmaking:

(i) Created conditions for transition from scavenging to skilled hunting.

(ii) Visual surveillance, long distance walking while foraging and hunting.

(iii) Increase in size and capacity of the brain

(iv) Invention of punch blade to make small chisel.

1

1

Look at the diagram showing the positive feedback mechanism on page 13. Can you list the inputs that went into tool making? What were the processes that were strengthened by tool making?

2

Humans and mammals such as monkeys and apes have certain similarities in behaviour and anatomy. This indicates that humans possibly evolved from apes. List these resemblances in two columns under the headings of (a) behaviour and (b) anatomy. Are there any differences that you think are noteworthy?

3

Discuss the arguments advanced in favour of the regional continuity model of human origins. Do you think it provides a convincing explanation of the archaeological evidence? Give reasons for your answer.

4

Which of the following do you think is best documented in the archaeological record: (a) gathering, (b) tool making, (c) the use of fire ?

5

Discuss the extent to which (a) hunting and (b) constructing shelters would have been facilitated by the use of language. What other modes of communication could have been used for these activities?

6

Choose any two developments each from Timelines 1 and 2 at the end of the chapter and indicate why you think these are significant.

1

Look at the diagram showing the positive feedback mechanism on page 13. Can you list the inputs that went into tool making? What were the processes that were strengthened by tool making?