VENUS IS A ROCKY PLANET and the second planet from the Sun .Venus spin slowly backwards as it orbit the Sun ,causing the causing its rotational period to be longest in the Solar System , at about 243 Earth days.It is slightly smaller than Earth and probably has a similar internal structure, consisting of a semi solid metal core , surrounded by a rocky mantle and crust.Venus is the brightest object in the sky after the Sun and Moon because its atmosphere reflect Sunlight strongly.The main component of the atmosphere is carbon dioxide which trap heat in a greenhouse effect far stronger than that on the Earth.As a result Venus is the hottest planet , with a maximum surface temperature of about 480c.The thick cloud layer contains droplets of sulfuric acid and are driven around the planet by winds at speed of up to 560 km per hour .Although the planet takes 243 Earth days to rotate once,the high speed winds cause the clouds to circle the planet in only four Earth days.The high temperature, acidic clouds and enormous atmospheric pressure (about 90 times greater at the surface than that on Earth.) make the environment extremely hostile .However, space probe manage to land on Venus and photograph its dry ,dusty, surface .The Venusian surface has also been mapped by probes with radar equipment that can "see" through the clouds layers.Such radar maps reveal a terrain with craters , mountains,volcanoes, and area where craters have been covered by plains of solidified volcanic lava.There are two large high land regions called Aphrodite Terra and Ishtar Terra.
When you decide to keep a Web page to look at later, you're doing something called "bookmarking". Bookmarks are simply links to sites that you visit frequently or want to keep handy for reference. There are a couple ways you can save Web pages for later: In your browser. All major Web browsers provide you with the ability to make and store your favorite links within the browser. These links are accessible several different ways, depending on what browser you might be using: a sidebar, a toolbar, or a drop-down menu. In a social bookmarking site. If you want to access your collection from anywhere and share them with others, then a social marking site - a site that lets you store your favourites links - might be for you. launch I n the context of the Web, the term launch usually means two different things. Permission to Launch - Website First, some Web sites use the word "launch" as a substitute for the more commonly known "enter" command. For ...
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