BIOMES OF THE EARTH - OCEANS Phần 9 pptx

... slopeinward; they rather resemble roofs placed on the ground. But thenthese roofs are meadows of comparative fertility. Thanks to theinternal heat, the grass grows on them to some degree On the 11th ... wonderfully interested in the arrival ofa vessel from which every one expected something, formed in groupsupon the quay. JOURNEY TO THE CENTER OF THE EARTH...

Ngày tải lên: 01/07/2014, 14:20

... cũng n i, "Nếu t i ph i i ra đ i dương chỉ để biết rằng t i không là gì cả, thế thì sao t i ph i i? " Giếng là ph i khi n i vậy. Và nó là ph i khi từ ch i i ra biển nếu i u đó ... bô nic và thiếu ô xi. Đúng là ô xi đang được tạo ra vào m i lúc, nhưng khi đám đông tiêu thụ nhiều ô xi hơn, i u đó đưa t i việc khan hiếm ô xi ở b i chợ. i vào chỗ đông ng...

Ngày tải lên: 22/07/2014, 00:21

... However, the sinking of a Russian nuclear submarine in the Arctic a few years ago is illustrative. The Kursk went down with the loss of its entire crew. On the surface, the sinking highlighted the internal ... state. In fact, the CIA’s anal- ysis to the contrary not withstanding – the Soviets have since the 1930s never led the United States in the rate of...

Ngày tải lên: 05/08/2014, 13:21

... in dealing with the changing nuclear arms balance – that was occurring in the summer of 2001 in the press, in the halls of Congress and in the recesses of the defense agencies of Washington was ... discouraged China and all other nations from increasing the size or quality of their nuclear arsenals, and from nuclear tests of any kind. The purpose of th...

Ngày tải lên: 05/08/2014, 13:21

... uthdidn’tundermine thesupport ofthe American peoplefor thepresident or the administration. It lessened support when the president was suspected of misleading us about the causes of the war; it forced the ... coalitions of the willing. The United States is right to break free of European entanglements which are the real remaining chains of twentieth century conflicts...

Ngày tải lên: 05/08/2014, 13:21

... boundary of the Southern Ocean is a feature called the Antarctic GEOGRAPHY OF THE OCEANS 21 thousand). In addition, the Baltic Sea, unlike the North Sea, is separated from the warming effect of the ... than the Atlantic’s average of 35 parts per 20 OCEANS GEOLOGY OF THE OCEANS 31 calculate Earth s likely temperature 1,865 miles (3,000 km) beneath the s...

Ngày tải lên: 05/08/2014, 14:20

... fraction of the wind speed. The fastest major surface currents in the world, the Gulf Stream of the North Atlantic and the Kuroshio Current of the North Pacific, flow at speeds of only 2.5 4. 5 mph (4 7 ... others, causes the atmosphere to circulate over the planet’s surface. The Tropics (that part of Earth s surface lying between the tropic of Cancer in t...

Ngày tải lên: 05/08/2014, 14:20

... for most of Earth s history the great majority of life-forms evolved in the oceans. The procession of life The earliest of Earth s organisms were probably archaebacte- ria (“archae” from the Greek ... prop- erly rather than simply suck or filter. By 250 million years ago 30-foot (9-m)-long sharks were traveling the seas, biting into other fish with their powerful jaws....

Ngày tải lên: 05/08/2014, 14:20

... governs the sex of hatchlings. Typically, cooler eggs (below 82°F or 28°C) develop BIOLOGY OF THE OCEANS 125 chase other seabirds to rob them of their fish catch, and they nest near colonies of other ... phytoplankton. Close to hydrothermal (hot-water) vents, chemosynthetic bacteria are ECOLOGY OF THE OCEANS CHAPTER 6 135 ECOLOGY OF THE OCEANS 141 fronds, where...

Ngày tải lên: 05/08/2014, 14:20

... direction of the four points of the compass (north, south, east, west). In the Northern Hemi- sphere the North Star (Polaris) shows north. In the Southern Hemisphere the cluster of stars called the ... landed in a place they called Vinland (“land of the vine”) because of the abundance of berry-bearing plants they found there. In the 1960s archaeologists excavat...

Ngày tải lên: 05/08/2014, 14:20

... pages 203–204). The sea’s military importance Since the time of the great civilizations of ancient Egypt, Greece, and Rome in the first millennium B.C.E., the ocean 180 OCEANS THE USES OF THE OCEANS ... in the near future. 194 OCEANS THE USES OF THE OCEANS 193 attractive to prospectors. By the late 1990s more than 30 percent of the world’s oil was b...

Ngày tải lên: 05/08/2014, 14:20

... addition, the specter of global warm- ing looms large. The future of the oceans Many scientists suspect that global warming is the greatest short-term threat to the well-being of life on land and in the sea. ... reaching the surface of the Earth. In the last two decades thinning of the ozone layer over the Southern Ocean has resulted in a decline in the pr...

Ngày tải lên: 05/08/2014, 14:20

... Union (IUCN) 209, 210 worms 25, 105 , 108 , 109 , 111, 141, 142, 150, 158 Z Zheng Ho 163, 165 zooplankton 104 106 in deep-ocean sediments 42 definition of 101 in food chain 105 106 , 136–137 iron-seeding and ... grams of seawater satellite remote sensing the use of satellites to detect fea- tures of Earth s surface 250 OCEANS plankton 67–68, 100 101 . See also phytopla...

Ngày tải lên: 05/08/2014, 14:20

... (Poaceae) of some 9, 000 species that thrive everywhere from the equator to inside the Arctic Circle and from the edge of the desert to the edge of the ocean. Among them the grasses harbor many other ... opportunity arose and they chose to do so. Many do visit the countryside, of course. When the railroads opened in the course of the 19th century one of thei...

Ngày tải lên: 05/08/2014, 22:22

... blindness and the presence of the fi gure of Hebrew. The presence of the latter assumes the identifi cation of Jews and thus the construction of the Jew occurs beyond any form of engagement with the ... brought into consideration. The left hand of the Rabbi in question is on the arm of Jesus and yet the operation of the hands, their opera...

Ngày tải lên: 07/08/2014, 04:20