Did you know that "megalith" means "big rock", which is certainly a good description of Stonehenge?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Aa
xAa : Hawaiian name for a type of lava flow with a surface that is broken into rough angular fragments which develop during cooling and loss of gas from pahoehoe flows.
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