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Kengo M

Desert - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/Desert

5lwh

shared by Kengo M on 08 Sep 09 - Cached
  • Deserts take up about one third (33 percent) of the Earth's land surface.
    • Marius S
      Marius S on 15 Sep 09
       
      Look more on it.
  • Deserts are often composed of sand and rocky surfaces.
  • In hot deserts the temperature in the daytime can reach 45 °C/113 °F or higher in the summer, and dip to 0 °C/32°F or lower in the winter.
    • Marius S
      Marius S on 08 Sep 09
       
      Intresting information!
  • ...3 more annotations...
  • The 10 largest deserts Rank   Desert   Area (km²)   Area (mi²)   1 Antarctic Desert (Antarctica) 13,829,430 5,339,573 2 Arctic 13,700,000+ 5,300,000+ 3 Sahara (Africa) 9,100,000+ 3,320,000+ 4 Arabian Desert (Middle East) 2,330,000 900,000 5 Gobi Desert (Asia) 1,300,000 500,000 6 Kalahari Desert (Africa) 900,000 360,000 7 Patagonian Desert (South America) 670,000 260,000 8 Great Victoria Desert (Australia) 647,000 250,000 9 Syrian Desert (Middle East) 520,000 200,000 10 Great Basin Desert (North America) 492,000 190,000
    • Kengo M
      Kengo M on 09 Sep 09
       
      So THE IS THE COLD DESERTS. i THOUGHT THEY WERE SMALLER. i SHOULD LEARN MORE ABOUT THE COLD DESERTS
  • A desert is a hostile, potentially deadly environment for unprepared humans. In hot deserts, high temperatures cause rapid loss of water due to sweating, and the absence of water sources with which to replenish it can result in dehydration and death within a few days. In addition, unprotected humans are also at risk from heatstroke.
  • Humans may also have to adapt to sandstorms in some deserts
  • Kengo M on 09 Sep 09
     
    Wow that is big. What kind of animals live there?
Kengo M

Ecosystems of Our World - 0 views

library.thinkquest.org/...ecosystems.htm

5lwh

shared by Kengo M on 09 Sep 09 - Cached
Chloe W liked it
  • What is a Biome?     A biome is a large area with similar flora, fauna, and microorganisms.  Most of us are familiar with the tropical rainforests, tundra in the arctic regions, and the evergreen trees in the coniferous forests. Each of these large communities contain species that are adapted to its varying conditions of water, heat, and soil.  For instance, polar bears thrive in the arctic while cactus plants have a thick skin to help preserve water in the hot desert.  To learn more about each of the major biomes, click on the appropriate heading to the right.  What is an Ecosystem?     Most of us are confused when it comes to the words ecosystem and biome.  What's the difference?  There is a slight difference between the two words.  An ecosystem is much smaller than a biome.  Conversely, a biome can be thought of many similar ecosystems throughout the world grouped together.  An ecosystem can be as large as the Sahara Desert, or as small as a puddle or vernal pool.     Ecosystems are dynamic interactions between plants, animals, and microorganisms and their environment working together as a functional unit.  Ecosystems will fail if they do not remain in balance.  No community can carry more organisms than its food, water, and shelter can accomodate.  Food and territory are often balanced by natural phenomena such as fire, disease, and the number of predators.  Each organism has its own niche, or role, to play.
    • Kengo M
      Kengo M on 14 Sep 09
       
      Learn what biomes and ecosystems are.
  • Kengo M on 14 Sep 09
     
    What is a Biome? What is an Ecosystem?
Alexandra R

Tundra Animals - 0 views

www.tundraanimals.net

shared by Alexandra R on 04 Sep 09 - Cached
  • Animals that live in the tundra have special adaptations that allow them to survive the extreme temperatures and conditions that are present in a tundra.  A good example of an animal with special adaptations is the Arctic Fox.  The Arctic Fox has short ears and a short, round body with a thick coat to minimize the amount of skin exposed to the frigid air.  There is a low amount of biodiversity in the tundra so fluctuations in one animal population will effect populations in another.  An example of this would be that if in a certain year there is a lower amount of Lemmings than usual, then the population of Snowy Owls, who feed mostly on Lemmings, will also decrease.
Ajay V

Deforestation in the Amazon - 0 views

www.mongabay.com/brazil.html

5RTo

shared by Ajay V on 11 Sep 09 - Cached
  • Hamza Ali H on 11 Sep 09
     
    Home What's New About Contribute Submissions Rainforests Mission Introduction Characteristics Biodiversity The Canopy Forest Floor Forest Waters Indigenous People Deforestation Consequences Saving Rainforests Amazon rainforest Borneo rainforest Congo rainforest Country Profiles Statistics Works Cited For Kids For Teachers Photos/Images Expert Interviews Rainforest News XML Feeds Chinese French Japanese Spanish Other Languages Pictures Books Links Newsletter Education Mongabay Sites Kids' site Travel Tips Tropical Fish Madagascar Contact About this site Providing tropical forest news, statistics, photos, and information, rainforests.mongabay.com is the world's most popular rainforest site. [more] Deforestation in the Amazon DEFORESTATION IN BRAZIL: 60-70 percent of deforestation in the Amazon results from cattle ranches while the rest mostly results from small-scale subsistence agriculture. Despite the widespread press attention, large-scale farming (i.e. soybeans) currently contributes relatively little to total deforestation in the Amazon. Most soybean cultivation takes place outside the rainforest in the neighboring cerrado grassland ecosystem and in areas that have already been cleared. Logging results in forest degradation but rarely direct deforestation. However, studies have showed a close correlation between logging and future clearing for settlement and farming. [Português | Español | Français] Deforestation by state Deforestation Figures for Brazil Year Deforestation [sq mi] Deforestation [sq km] Change [%] 1988 8,127 21,050 1989 6,861 17,770 -16% 1990 5,301 13,730 -23% 1991 4,259 11,030 -20% 1992 5,323 13,786 25% 1993 5,751 14,896 8% 1994 5,751 14,896 0% 1995 11,220 29,059 95% 1996 7,012 18,161 -38% 1997 5,107 13,227 -27% 1998 6,712 17,383 31% 1999 6,664 17,259 -1% 2000 7,037 18,226 6% 2001 7,014 18,165 0% 2002 8,260 2
  • Hamza Ali H on 11 Sep 09
     
    TROPICAL RAINFORESTS: Deforestation in Brazil Click Here Home What's New About Contribute Submissions Rainforests Mission Introduction Characteristics Biodiversity The Canopy Forest Floor Forest Waters Indigenous People Deforestation Consequences Saving Rainforests Amazon rainforest Borneo rainforest Congo rainforest Country Profiles Statistics Works Cited For Kids For Teachers Photos/Images Expert Interviews Rainforest News XML Feeds Chinese French Japanese Spanish Other Languages Pictures Books Links Newsletter Education Mongabay Sites Kids' site Travel Tips Tropical Fish Madagascar Contact About this site Providing tropical forest news, statistics, photos, and information, rainforests.mongabay.com is the world's most popular rainforest site. [more] Deforestation in the Amazon DEFORESTATION IN BRAZIL: 60-70 percent of deforestation in the Amazon results from cattle ranches while the rest mostly results from small-scale subsistence agriculture. Despite the widespread press attention, large-scale farming (i.e. soybeans) currently contributes relatively little to total deforestation in the Amazon. Most soybean cultivation takes place outside the rainforest in the neighboring cerrado grassland ecosystem and in areas that have already been cleared. Logging results in forest degradation but rarely direct deforestation. However, studies have showed a close correlation between logging and future clearing for settlement and farming. [Português | Español | Français] Deforestation by state Deforestation Figures for Brazil Year Deforestation [sq mi] Deforestation [sq km] Change [%] 1988 8,127 21,050 1989 6,861 17,770 -16% 1990 5,301 13,730 -23% 1991 4,259 11,030 -20% 1992 5,323 13,786 25% 1993 5,751 14,896 8% 1994 5,751 14,896 0% 1995 11,220 29,059 95% 1996 7,012 18,161 -38% 1997 5,107 13,227 -27% 1998 6,712 17,383 31% 1999 6,664
Avinash X

Animals - 0 views

www.globio.org/...article.aspx

5lwh fastest loudest animal facts

shared by Avinash X on 14 Sep 09 - Cached
  • The Champions of the Animal KingdomPeople are good at a lot of things, but if animals could enter the Olympics as one team they would probably win almost all the medals! Animals can outrun, outswim, and outjump all humans. Young cheetahs learn to hunt by watching their mother. Later, they start taking part in the hunt. Cheetahs are the fastest land animal and can reach speeds of 113kph in short bursts. ©G.Ellis/GLOBIO.org Fastest Mammal on Land Cheetahs can run up to 113 kph. Fastest Mammal in Water Dall porpoises can swim up to 56 kph. Fastest Flying Bird Peregrine falcons can dive toward the ground at more than 320 kph. Fastest Flightless Bird North African ostriches are the fastest birds on land. They can run at speeds up to 72 kph. They are also the biggest bird. They can weigh 155 kg. Fastest Fish Sailfish can swim up to 109 kph. Loudest Animal The blue whale’s low-frequency pulses are as loud as 188 decibels. This is louder than a jet engine. A blue whale’s call can be detected more than 805 km away. On land, the loudest animals are howler monkeys. Their howls can be heard 4.8 km away.
    • Avinash X
      Avinash X on 16 Sep 09
       
      i hope this interests you
  • Arctic terns migrate to and from the Antarctic - about 35,405 km round trip - each year. Among mammals, gray whales and northern elephant seals are the migration champions. They travel up to 20,900 km round trip each year. Deadliest Animal Female Anopheles mosquitoes, which carry and transmit malaria, play a role in the deaths of more than a million people each year. Most Venomous Animal A single sea wasp (a kind of jellyfish with 60 tentacles, each 4 m long) has enough venom to kill 60 adult humans. Strongest Animal The rhinoceros beetle can lift 850 times its own weight
  • ...2 more annotations...
  • Longest Gestation Asian elephants are born after a gestation period of 19 to 22 months. Largest Mammal Blue whales are the largest mammals of all time and the largest living animal. Females grow to a length of about 27 m. They may weigh well over 100 metric tons. The heaviest blue whale weighed more than 190 metric tons. The longest ever measured was more than 33 m. African elephant bulls are the heaviest land animal. Large males may weigh as much as 5,895kg. Despite their power and size, elephants are vegetarians, or herbivores. ©G.Ellis/GLOBIO.org Largest Living Animal on Land African elephants are the heaviest land animal. They are also the second tallest land animal. Large bulls (males) weigh more than 5,895 kg and are 3.5 m tall at the shoulder. Giraffes, which can grow to a height of 5 m, are the tallest land animals. Large males weigh more than 1,800 kg. Smallest Vertebrate Australia's stout infantfish, slightly smaller than the better-known dwarf goby, is less than 1 cm long. Smallest Bird Adult bee hummingbirds, found in Cuba, weigh about 2 g. Smallest Mammal Adult bumblebee bats, which live in Thailand, weigh about 2 g. Longest Lifespan In the 1770s, British explorer Captain James Cook presented a Madagascar radiated tortoise to the royal family of Tonga. The tortoise lived until 1965. It was at least 188 years old when it died! Several Galápagos tortoises h
  • ave lived past age 150.
  • Avinash X on 14 Sep 09
     
    this looks quite informative. i never knew this!!!
Kengo M

Sahara Desert Plants - 0 views

www.factsmonk.com/Sahara_Desert_Plants

shared by Kengo M on 10 Sep 09 - Cached
  • Sahara Desert Plants The Sahara Desert is often described as a bleak and barren plain. In truth, it is very beautiful and full of different Sahara Desert plants. Sahara Desert Plants Among desert areas throughout the Earth, there are two types. The cold type of desert, which is often found in Arctic regions, is an area that gets very little precipitation. The cold desert can be covered in snow, however, and the temperatures here are chilly and unsuitable for sustaining many life forms. The other type of desert is known as the hot desert, and this is what people usually think of when they picture a desert area. This type of desert is extremely warm and dry, with temperatures reaching unbearable levels, and little to no rain to sustain those who live here. The biggest of the hot deserts is the Sahara Desert, located in Africa. Although this desert is not the most hospitable place for organisms to take up residence, the Sahara Desert plants defy the odds and thrive here.
    • Kengo M
      Kengo M on 15 Sep 09
       
      Can use this info for intro of power point
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