PLANET EARTH - The Incredible Visual Guide Part 4 pot

... battery US_ 040 _ 041 _WD207.indd 40 9/1/09 17:11:39 046 _ 047 _WD207.indd 47 27/11/08 16:09:26 47  SAND-BLASTING In desert zones, where there are few plants to bind the soil together, the wind picks ... vigorously. Cobbles Gravel US_ 048 _ 049 _WD207.indd 48 9/1/09 17: 14: 59 040 _ 041 _WD207.indd 40 17/12/08 14: 26:32 40 Galena is a very heavy mineral 8 9 10 6 5 4 1 2 Gar...

Ngày tải lên: 05/08/2014, 22:22

... 17 :41 : 24 1 14_ 115_WD207.indd 1 14 17/12/08 14: 44: 23 1 14 People rst started farming the land in the late stone age. Since then, farming has had a bigger impact on the landscape than any other human ... DESERT Lying at the heart of southern Africa, the Kalahari is a mixture of scorpion-infested desert with long sand dunes, and tree-dotted dry grasslands. The region co...

Ngày tải lên: 05/08/2014, 22:22

... 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 rocky inner planets, Earth is the only ... 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 incredible...

Ngày tải lên: 05/08/2014, 22:22

... analyzed the surface conditions, gathered images, and beamed the data back to Earth. The information they collected was vital to the safety of the rst astronauts to visit the Moon in the late ... 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...

Ngày tải lên: 05/08/2014, 22:22

... 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...

Ngày tải lên: 05/08/2014, 22:22

... 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...

Ngày tải lên: 05/08/2014, 22:22

... deep I c e - s c o u r e d r o c k , C a n a d a M i l f o r d S o u n d , N e w Z e a l a n d 2 G l a c i a l v a l l e y , N o r w a y US_0 74_ 075_WD207_Ice.indd 74 9/1/09 17:25:50 0 64_ 065_WD207_Water_Ice.indd 64 12/12/08 09:57 :48 64 The feature of planet Earth that makes it so special is liquid water the substance ... 17:20:29 0 74_ 075_WD207_Ice.indd 74 5/12/08 14: 2...

Ngày tải lên: 05/08/2014, 22:22

... around the planet. The outer atmospheric layers are invisible, because the air in them is so thin. Clouds rise to the top of the troposphere, but no farther, so all the water vapor in the atmosphere—and ... 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...

Ngày tải lên: 05/08/2014, 22:22

... 17:35:09 092_093_WD207.indd 93 5/12/08 14: 32 :48 93 6 MARITIME In the temperate regions, weather systems move east from the oceans over the land. This means that the western fringes of the continents— places ... ocean. The climate is one of the key inuences on the character of the landscape—whether it is green and lush, barren and dusty, or frozen for part or al...

Ngày tải lên: 05/08/2014, 22:22

... 70–71 roads 118, 119, 122 rock 75, 94 95 cycle 58–59 igneous 42 43 metamorphic 56–57 Moon rock 14 sedimentary 50–51 strata 54 55 weathering 3 6-3 7, 46 47 Rotorua, New Zealand 34 S Sahara Desert 67, 111 St. ... Peru 120 magma 30, 31, 42 , 43 , 44 , 57, 58 magnetism, Earth s 17 mangroves 105 mantle, Earth s 16, 18–19, 20, 42 marble 56, 116 maritime climate 93 Mars 11, 33, 64 ma...

Ngày tải lên: 05/08/2014, 22:22