Did you know that Colonial Americans used large sheets of mica as glass for windows?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Spreading ridge
xSpreading ridge : An oceanic spreading ridge is the fracture zone along the ocean bottom where molten mantle material comes to the surface, thus creating new crust.
As greenhouse gases build up in the atmosphere, more of the energy that gets to Earth from the Sun sticks around the planet. This means that the amount of energy coming to Earth is greater than the amount...Read more