learning to farm and raise animals

nomadic. they moved around in search of food. they modified the environment by growing plants and raising animals

the retreat of the ice age glaciers. this meant that early humans could move into new areas.

humans learned to grow and tend the grasses. this skill provided grazing animals with more grain to eat.

reliable source of meat and milk products. after people killed animal they used its skin to make clothing and shelter.

sheep and goat

planting seeds to raise crops

is the name given to shift from food gathering to food raising.

tools and techonolgy ( hoes, sticks)

early farmers used this method of agriculture. they cut and burned trees to clear land for crops.

tools improved

bigger and better crops . this attracted farmers.

farmers started settling in villages and went out to the fields to work .

1. food more plentiful2.people living in larger groups could with stand attacks against nomads

fire, disease, flood

in areas where water was available such as river valleys.

example : nile in africa and huang he in china

the watering of crops .

african farmers along the nile . the built irrigation systems of dikes and canals

farming in america devleloped later than the rest of the world. but when it did develop it was in the uplands region which is flat plateaus in high elevation

great increase in human population .

today most people depend on agriculture for their food. in africa and india peoplea are still farmers.