PLANET EARTH - The Incredible Visual Guide Part 10 pps

... one. TROPICS The hot regions to the north and south of the equator, between the Tropic of Cancer and the Tropic of Capricorn. TROPOSPHERE The lowest layer of the Earth s atmosphere. TSUNAMI A fast-moving ... 80 pampas 108 papyrus swamps 104 Paris, France 120 Patagonian Desert 110 peat bogs 51, 61, 105 peridotite 18, 42, 57 permafrost 74, 75, 93, 105 photosynthesis...

Ngày tải lên: 05/08/2014, 22:22

... (the Coriolis eect) and swerve toward the west as the trade winds. In regions midway between the poles and the equator, winds are deected to the east. Since these blow from the west they ... tropics, and toward the east in the midlatitudes farther north and south. They drag the surface waters of the oceans with them, creating huge clockwise current gyres in the...

Ngày tải lên: 05/08/2014, 22:22

... mouth US _100 _101 _WD207.indd 101 9/1/09 18:11:45 102 _103 _WD207_Coral.indd 102 19/12/08 16:20:28 102 Tropical coral reefs are among the richest ecosystems on Earth. Their wealth is based on a partnership ... France US_092_093_WD207.indd 92 9/1/09 17:33:24 100 _101 _WD207.indd 100 16/12/08 17:01:25 100 Most of the life on Earth lives in the surface zone of the oceans....

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... ago, the atmosphere was thicker and it kept the planet warm enough for rivers of water to ow on the surface. Nearly all the water on Mars has now turned to ice. 6 EARTH The largest of the ... eect Iron oxide in the rocks gives Mars its rust-red color Water droplets form white clouds in the atmosphere 6 7 8 9 5 US_ 010_ 011_WD207.indd 11 9/1/09 18:00:24 the i...

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... and rock in the region of the galaxy where the Sun was born. As the pieces of dust and rock orbited the star, they were pulled together by their own gravity, and the energy of these collisions ... neighbor. THE MOON  UNMANNED PROBES The rst spacecraft sent to the Moon were robots, which analyzed the surface conditions, gathered images, and beamed the data back to...

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... seconds. EARTHQU AKE CITY  The city of San Francisco lies at the northern end of the San Andreas Fault, and suers regular earth tremors. The last earthquake struck in 1989, destroying part of the ... destructive. The farther the waves travel, the weaker they get, but they can often be detected on the other side of the world. MEASURING  An earthquak e is measur...

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... rocks from the same raw material. IGNEOUS ROCKS 1 PERIDOTITE This is the rock that forms much of the deep mantle beneath the crust, and therefore 80 percent of the planet. It is rare on the surface, ... suspension. As the ow of water in a river slows down, it drops the heavier particles but keeps moving the lighter ones. This usually means that the particles are de...

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... frequently they snap due to tension pulling the rocks apart. One side of the fault drops relative to the other—or is pushed up by pressure—and the rock strata become oset. By matching the layers, ... dentist’s drills. When the bones are exposed, they are preserved, often with a varnish, to stop them falling apart. Scientists can then work out how they once t together. 2 1...

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... 6 GLACIAL REBOUND The colossal weight of the ice-age ice sheets distorted Earth s crust downward. In the 12,000 years since they melted, the crust has been steadily rising at the rate of up ... GLACIER In the polar regions, southeastern Alaska and southern New Zealand, glaciers ow all the way to the coast and out to sea. Here, the oating snout of the Hubbard Gla...

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... animals on the reef Southern O cean Indian Ocean Africa Asia Australia Europe Potato cod US _102 _103 _WD207_Coral.indd 103 9/1/09 17:37:21 104 _105 _WD207_Wetlands.indd 105 16/12/08 17:06:53 105  TROPICAL ... savanna Australian bush US _108 _109 _WD207.indd 109 9/1/09 17:38:52 104 _105 _WD207_Wetlands.indd 104 16/12/08 17:06:37 104 Most wetlands are freshwater habitats wher...

Ngày tải lên: 05/08/2014, 22:22