earth science n (Geological Science) any of various sciences, such as geology, geography, and geomorphology, that are concerned with the structure, age, and other aspects of the earth Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994,...
Scientists believe there are 30 tectonic plates on Earth and the continents lie on top of them. Under Earth's surface is the mantle ( 地幔). The mantle is a layer ( 层) of rock about 2,900 km thick. The temperature rises to 3, 700C at the bottom of the mantle. The heat causes ...
B.To help find out how many krill might be livingC.To have a better knowledge of the Antarctic environmentD.To collect first-hand data for analyzing global warming.【3】What does the underlined word “them” in the last paragraph refer toA.Scientists.B.Krill.C.Penguins.D.Ocean animals.【...
Since L3 scientists were involved in a greater variety of activities, it is unsurprising that we would find activities only conducted by L3 scientists (e.g., research question development, revision based on evaluation). Some activities (e.g., understanding needs, values, and time frame of ...
Skylab space station in orbit over a cloud-covered Earth, photographed February 8, 1974, by the departing third crew of astronauts from their Skylab 4 Command Module. The makeshift gold-coloured sun shield and underlying parasol on the main part of the station were installed by the first two ...
Dead Planets SocietyJoin space reporterLeah Crane, US editorChelsea Whyte, and some of the world's foremost experts as they discuss outlandish and mind-blowing what-ifs about the universe. What if Earth was actually cube shaped? Can we destroy the sun? Is it possible to make Pluto a planet...
After your trip, you just might find yourself dreaming of learning more about these peculiar lives that give abundant life to one of the most extreme places on Earth. And next time you pack your bags, you just might leave room for a travel microscope. ...
However, making this impeller was relatively easy compared with Yang's next big project: creating the crew chamber for the Fendouzhe deep-sea manned submersible that can withstand the extreme water pressure in the deepest parts of the ocean. ...
And yet, as reported online by Earth... Over 800 world scientists agree: GM crops are nothing short of a bio-war on our food5/22/2013 - You don't have to be a rocket scientist to understand why genetically modified foods are dangerous, but if you look closely, you may just find ...
For now, all I know is these shark teeth are tiny. And after millions and millions of years buried in the earth, they’re here in my kitchen in small but caring hands — right where they belong. members of the arachnid family. It was first theorized by E. Ray Lankester in 1881. But...