history of life a very short introduction
... causing earthquakes and volcanoes, and raising a chain of mountains from the Appalachians, across Ireland and Germany, to Poland. Much of Europe and North America lay around the Carboniferous equator, and ... Period Cenozoic Mesozoic Palaeozoic Precambrian Proterozoic Archaean Hadean Tertiary Quaternary Neogene Palaeogene Cretaceous Jurassic Triassic Permian Carboniferous Devonian Silur...
Ngày tải lên: 08/04/2014, 01:14
... whole life, not (as in the mountaineering ideology of life) as isolated peaks of attainment. By and large, people either feel good or they do not, and are generally aware of the fact. One cannot, ... what you make it? living – which is to say, a certain quality, depth, abundance, and intensity of life. In this sense, the meaning of life is life itself, seen in a certa...
Ngày tải lên: 11/01/2014, 18:45
... is a massive plateau of ancient rocks, elevated towards the east but dominated by a series of vast alluvial flatlands. Like Africa’s 11 The idea of Africa rocks, its soils are ancient – and many, ... outcrops of the Adrar des Iforas in Mali, and Ahaggar and Tassili in Algeria. About 5,000 years ago, rainfall began to decline and over succeeding millennia the Sahara became the great...
Ngày tải lên: 25/03/2014, 06:21
Economics: A Very Short Introduction
... due care has been taken by insurees against bad outcomes (protection against moral hazard). By being able to take advantage of the Law of Large Numbers, markets and the government, taken together, are ... failure, they are reluctant to undertake activities offering a chance of huge success if there is also an accompanying chance of large failure. Desta’s world has remained poor in p...
Ngày tải lên: 10/01/2014, 18:21