Almost a century ago, the revolutionary idea of the biosphere gained a foothold in science. Defined as the collective activity of all life on Earth—the ... must scaffold layers of complexity ...

geologists have a variety of neat tricks to create a picture of our Earth's layers. Just like a kid's jawbreaker, Earth consists of layers that differ in composition and generally get hotter and ...

There are four main layers to the Earth: crust, mantle, outer core and inner core, along with transition zones between these layers. The world we know lies on tectonic plates making up the Earth’s ...

Here’s how it works. Earth's atmosphere is a thin band of air made up of numerous layers based on temperature. Without this protective blanket, life on Earth would not exist as it protects us ...

So when the moon interacts with both the Earth and the sun, the solar interaction is stronger. Of course, the motion of the moon depends on the sum of these forces. Look at this diagram of the ...