1. population
During the first 2 million years of our history the human population had very little effect upon the overall world ecosystem, with no more than 10 million members. ... Problem About 140 000 million babies will be born, and 53 million will die which gives the overpopulated world an additional 84 million people per year. ... Farming has been around since the 8000 B.C perhaps one of the most important inventions ever made. ... Someone must feed the hungry, with each individual requiring about 2 200 calouries per day. ... Wheat, rice and similar grains are important measure to ensu...
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- Approx Pages: 12