From lakes and grasslands with hippos and giraffes to a vast desert, North Africa's sudden geographical transformation 5,000 years ago was one of the planet's most dramatic climate shifts.
The transformation took place nearly simultaneously across the continent's northern half, a new study finds. The results will appear in an upcoming issue of the journal Earth and Planetary Science Letters.
http://www.livescience.com/28493-when-sahara-desert-formed.html
Marie Curie was a physicist and chemist and a pioneer in the study of radiation. She and her husband, Pierre, discovered the elements polonium and radium. Together, they were awarded the Nobel Prize for Physics in 1903, and she received another one, for Chemistry, in 1911.
"<span>People in the colonies no longer wanted to be ruled by the British Parliament" is the proper answer. A series of unpopular taxes issued on the colonies by the British led to anger from the colonists. </span>
<span>African americans: new opportunities. got to fly planes, fight in the war, work in factories
Women: helped in the war, got many new jobs</span>
It is the process plants use to make food.
