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Words of the Week for Sep 3-6, 2013
Terms in this set (12)
The destruction of trees and other vegetation
an extended period of time without rainfall
the process of land becoming like a desert, due to deforestation and drought.
a small place where trees are able to grow and where people can live with grazing animals and a few crops.
people who move from place to place, looking for water or food.
a group of people who live the nomadic way of life. Their name means "free men."
growing just enough food for the needs of your family.
a dying out of a species of plants or animals.
providing water for crops.
the exchange of goods between countries.
contamination of water supplies due to chemical, fertilizer, sewage, and other garbage.
a group of businesses engaged in the manufacturing of the same or similar products.