How are deserts formed? A A desert refers to a barren section of land, mainly in arid and semi-arid areas, where there is almost no precipitation, and the environment is hostile for any creature to …
As sand dunes lose sand -- perhaps from waves reaching them during a particularly strong storm, or because humans disturb their structure -- they also lose their ability to absorb storm surges. Dunes can take decades to recover from this sort of destruction [source: CSI]. The reason you ...
Camels don't sweat as much as humans do, and at night, their metabolism slows way down to help preserve water as well. The heavy fur on their bodies acts as an insulator against heat as well as a blanket against a desert's extreme winter cold. With extra-dry nasal passages and large ...
It may not be as hellish as Venus, but the fourth planet from the sun still isn't what most people would call hospitable. The atmosphere on Mars differs from Earth's in many ways, and most of them don't bode well for humans living there. Composed mostly of carbon dioxide (the gas ...
Because Mars has no magnetic field, humans would receive whopping doses of cosmic radiation — not a problem on Earth, where the planet's magnetic field works to block it out. A 1,000-day trip to Mars has the potential to result in a 40 percent chance of the astronaut developing cancer...
To ensure enough vanilla beansto meet worldwide demand, they have to be hand-pollinated. See, orchids are smart: This one has the humans doing all the work for it. Tips for Growing Orchids This is the most common type of orchid, thePhalaenopsisor moth orchid. Not surprisingly, it is ea...
How do dingoes hunt? Dingoes: Dingoes are canines that live mainly in Australia. They inhabit a wide variety of habitats, from deserts to forests, mountains to plains. They have interbred with domestic dogs, so most dingoes in Australia today are hybrids. ...
(构成) some of the least livable places on Earth. In other words, whether through urbanization, forestry, agriculture or other means, humans have applied the most influence on biodiverse land that presented ripe and easy opportunities for immediate human needs; in contrast, roasting deserts in ...
Magnetic field- The earth has amagneticfield that's usually undetectable to humans who aren't holding a compass. Some animal species do have the ability to detect the magnetic field, however, and they use it to make their migrations.Batsand sea turtles use magnetic information to find their ...
A growing human population and runaway consumption are puttingunsustainable pressureson the natural resources we depend on for survival. Our misuse and abuse of land and water is changing fertile land into deserts. The word "desertification" conjures up images of the spread of existing deserts, wi...