Page 40 - Volt Elevate The World Around Us Book 4

Flex Your Brain

A. Choose the correct answer.

1. What did ancient Indian scholars use to write messages?
(a) Paper (b) Leaves and bark
(c) Cloth (d) Plastic sheets

2. Which of the following is a modern mode of communication?
(a) Smoke signals (b) Stone carvings

(c) Mobile phones (d) Drum beats
3. Which vehicle is used to travel across seas and oceans?
(a) Metro (b) Ship

(c) Bicycle (d) Bus
4. Which of the following is a public vehicle?

(a) Car (b) Scooter
(c) Motorcycle (d) Bus

B. Write True or False. Also rectify the incorrect statements.

1. Early humans used drums and smoke to send messages. ____________
2. Footpaths are meant for vehicles and bicycles. ____________

3. Social media helps us connect with people quickly. ____________
4. Tunnels are built above roads for vehicles to pass. ____________

C. Match the following columns.

Column A Column B

1. Flyover (a) Underwater or underground path
2. Pigeons (b) Public transport in big cities

3. Metro train (c) Birds trained to carry messages
4. Tunnel (d) Helps vehicles avoid traffic on roads

D. Answer the following questions.
1. How did kings send messages in ancient times?

2. Name two devices used in modern communication.
3. What is the use of a foot-over-bridge?

4. Why are flyovers and tunnels important in cities?

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