D. Think and answer.
The wheel was used for transport only after
the invention of the axle. Why?
E. Picture study
Look at the picture. Answer the questions.
1. How were the earliest ships powered?
2. How were adjustable sails useful
to the sailors?
3. Write a short note on Christopher Columbus.
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Answer:
below
Explanation:
d) because the wheel had a lot to face the invention of the axle changed the world
e) 1) the early ships were powered by the wind
2) the adjustable sails were used to change the direction of the ship
3)Cristoffa Corombo; born between 25 August and 31 October 1451, died 20 May 1506) was an Italian explorer and navigator who completed four voyages across the Atlantic Ocean sponsored by the Catholic Monarchs of Spain, opening the way for the widespread European exploration and colonization of the Americas. His expeditions were the first known European contact with the Caribbean, Central America, and South America.
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