For many years, scientists couldn't figure out how atoms and molecules on the Earth combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecules in the primitive ocean. What's ...
appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much carbon dioxide into the atmosphere, whic...
The charged particles interact with Earth’s magnetic field, and they’re pulled toward the North and South Poles. 带电粒子与地球磁场相互作用,它们被拉向北极和南极。 Some of them make it into our upper atmosphere, where they collide with atoms—with oxygen and nitrogen atoms. 其中一些进入了我...
Earth has a mass of 5.98×1024 kg. The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth? Mass: In physics, the term mass can be defined as the measuring of the amount of matter that a...
Carbon is a very important part of life and life would not be possible without carbon on earth. Carbon has the ability to form bonds with other atoms...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
B. Small clever animals produce too much carbondioxide. C. Small clever animals don't want heat to escapefrom the earth. D. Small clever animals like to live on a hot planet. 2四、阅读HOW LIFE BEGAN ON THE EARTH,回答下列问题1. How were stars and other bodies created? A. Atoms ...
“When hippies took mind-expanding drugs, how much wider did their minds get,” and “What’s a black hole… Sorry, a ‘hole of color’?” are just a couple of the familiar wordplay-based bits you’ll get out of the Cunk on Earth extended play. Her famous misinterpretation of ...
1.Judge whether the statements are true or false. ① Atoms began to form to create stars and other bodies before the “Big Bang”.( ) ② When the earth cooled down,water began to appear on its surface . () ③ The earth was different from the other planets.() ④ Life can also appe...
For First Nations peoples, Indigenous concepts of science make no sense and have no meaning if they are separated from the people and their culture.Dr Lee explains that star knowledge is about so much more than science itself: 对于原住民来说,如果他们与原住民及其文化分离,土著的科学概念就没有...
2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much ...