9780195704969 - The Atmosphere and Weather of Southern Africa de Preston-White, R.A. (5 resultados)

Paperback. Condición: Good. 3rd impression. 3rd impression, 1993. Heavy book may require extra postage unless posted within South Africa. The wraps are a little shelf rubbed and edge worn. On the first and last pages there are old tape residue marks. On the top of the pages there are minor marks, from the removal of paper clips. There are minor annotations within the book, the text remains bright and clear. The binding is excellent. GK. Our orders are shipped using tracked courier delivery services.

Softcover. Condición: Fair. Reprint. The wraps are shelf rubbed and edge worn. There are creases along the edges. Internally, clean and complete. Tightly bound. r*09/11/2023. [AK]. Our orders are shipped using tracked courier delivery services.

PaperBack. Condición: Very Good. No Jacket. First edition. 375pp.; a very wellkept copy of this title; the cover shows little or no sign of shelfwear, and internally the text and diagrams are clean, clear and unmarked. It appears to have been very lightly used.

Soft cover. Condición: Very Good. The wraps are rubbed and marked.Creased.Well bound.Due to weight postal adjustments may be required.24-12-2020. Our orders are shipped using tracked courier delivery services.

Softcover. Condición: Good. Immediate dispatch from Somerset. Book still in great condition. Cover and corners has some wear but pages are free from notes and in great condition. Some marking to page block but pages are great. See images. A great book. About the book >.>.> The earth's atmosphere was not always composed of gases in the proportions and quantities found today. It is generally agreed that when the earth was formed about five thousand million years ago, high temperatures precluded the formation of an atmosphere. High temperatures caused molecular speeds to exceed the escape velocity required by molecules to break free from the earth's gravitational attraction. This caused the original gases, probably composed of a mixture of methane and ammonia, to escape to space. As the earth began to cool, however, gases dissolved in the molten rock and released at the surface by the process of outgassing were retained as an atmosphere by the earth's gravitational attraction. Judging from present-day gases found in volcanoes, it appears likely that the early atmosphere consisted of large amounts of water vapour, carbon dioxide, sulphur and nitrogen, together with much smaller quantities of argon, chlor.