Questions with the keyword 'layer'

• haw much longer until the ozone layer is destroyed by 688xygg27 to Gavin, Mark, Michel, Roisin Comments: (No comments so far )
• how are scientists going to see through the dense layers of gas/dust around stars when they are born. by serious mass to Gavin, Karen, Mark, Michel, Roisin Comments: (No comments so far )