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Student: Excuseme, Professor, can I ask you a few questions about early farming?

Professor:Yes, sure. I’ll be glad to help you.

S: How didearly farmers cultivate their land?

P: The lifeof a farmer has never been easy! First, they had to clear a plot of land, andthen they dug it using sharp sticks. Later on they learned to plough their land;it was a lot more convenient to use a plough than a sharp stick.

S: They hadto irrigate their fields, didn’t they? How did early farmers water theirfields?

P: Theyoften dug small irrigation canals and connected them to rivers.

S: I see. Theywere able to organize some kind of water supply. I didn’t know that! But couldthey actually control the level of water in their irrigation canals?

P: Controllingwater has always been difficult, but early farmers did their best. They built damson small rivers to hold back the water. They needed the constant supply ofwater to grow their crops. They also needed water for their animals and themselves.For that reason people in those days chose places for their settlements nearrivers and lakes.

S: Thankyou very much, Professor! I learn something every day from you.

P: You arewelcome. That’s what teachers are for!