Download or read book Memoria del Segundo Congreso Nacional de Cartograf a y de la 2a Exposici n Nacional de Cartograf a written by and published by . This book was released on 1953 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del Primer Congreso Nacional de Cartograf a y de la 1a Exposici n Nacional de Cartograf a written by and published by . This book was released on 1952 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del Congreso nacional y pan americano de la prensa written by and published by . This book was released on 1943 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del Congreso nacional y pan americano de la prensa written by National and Pan-American press congress and published by . This book was released on 1945 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del Segundo Congreso Nacional de Facultades de Derecho written by and published by . This book was released on with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Segundo Congreso nacional de mujeres pol ticas written by María Inés Ferreira de Marín and published by . This book was released on 2000 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Havanna 1943 Memoria del segundo Congreso Nacional y Panamericano de Prensa With plates written by and published by . This book was released on 1945 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book II Congreso Nacional de Fotogrametr a Fotointerpretaci n y Geodes a written by Congreso Nacional de Fotogrametría, Fotointerpretación y Geodesía (2, 1973, México) and published by . This book was released on 1973 with total page 3046 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del Congreso Nacional written by Sociedades Hispanas Confederadas de Ayuda a España Conferencia Nacional and published by . This book was released on 1937* with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Republic of Mexico in 1876 written by Antonio García Cubas and published by . This book was released on 1876 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Isotope Techniques in Hydrology written by International Atomic Energy Agency and published by . This book was released on 1968 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plants for Arid Lands written by G.E. Wickens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic plants have been defined by SEPASAT as those plants that are utilised either directly or indirectly for the benefit of Man. Indirect usage includes the needs of Man's livestock and the maintenance of the environment; the benefits may be domestic, commercial or aesthetic. Economic plants constitute a large and so far uncalculated percentage of the quarter of a million higher plants in the World today. However, it has been calculated that 10% (25 000) of these species are now on the verge of extinction and extinction means that a genetic resource that could be of benefit to Man will be lost for ever. Furthermore, for every species lost an estimated 10-30 other dependent organisms are also doomed. Fewer than 1 per cent of the World's plants have been sufficiently well studied for a true evaluation of the potential floral wealth awaiting discovery, not only in the rain forests, which man is now actively destroying at a rate of 20 ha a minute, but also in the very much neglected dry areas of the World.
Download or read book Rocky Mountain Forest and Range Experiment Station written by and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Caracas Cenital written by Nicola Rocco and published by . This book was released on 2004 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geothermal Resources written by R. Bowen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the Arab oil embargo of 1974, it has been clear that the days of almost limitless quantities of low-cost energy have passed. In addition, ever worsening pollution due to fossil fuel consumption, for instance oil and chemical spills, strip mining, sulphur emission and accumulation of solid wastes, has, among other things, led to an increase of as much as 10% in the carbon dioxide content of the atmosphere in this century. This has induced a warming trend through the 'greenhouse effect' which prevents infrared radiation from leaving it. Many people think the average planetary temperatures may rise by 4°C or so by 2050. This is probably true since Antarctic ice cores evidence indicates that, over the last 160000 years, ice ages coincided with reduced levels of carbon dioxide and warmer interglacial episodes with increased levels of the gas in the atmosphere. Consequently, such an elevation of temperature over such a relatively short span of time would have catastrophic results in terms of rising sea level and associated flooding of vast tracts of low-lying lands. Reducing the burning of fossil fuels makes sense on both economic and environmental grounds. One of the most attractive alternatives is geothermal resources, especially in developing countries, for instance in El Salvador where geothermal energy provides about a fifth of total installed electrical power already. In fact, by the middle 1980s, at least 121 geothermal power plants were operating worldwide, most being of the dry steam type.
Download or read book The Andes written by Onno Oncken and published by Springer Science & Business Media. This book was released on 2006-11-22 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive overview of a complete subduction orogen, the Andes. To date the results provide the densest and most highly resolved geophysical image of an active subduction orogen.
Download or read book The Santa Rita Experimental Range written by Alvin L. Medina and published by DIANE Publishing. This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
