https://en.wikipedia.org/wiki/Subduction https://en.wikipedia.org/wiki/Plate_tectonics https://en.wikipedia.org/wiki/Seafloor_spreading https://www.nasa.gov/mission_pages/asteroids/overview/fastfacts.html
Ya. We have a Double Loaded Bungee Cord milking machine just for kangaroos Trains them to jump up and down in one spot Cords attach to the ceiling and floor. Kangaroo goes in a pouch in the middle Clear the Joey's out of the kangas pouch, slip in the milk collector, you got yourself Kanga milk Big hit with fast food outlets. Pour into strong tumbler, add flavour, it shakes itself as it hops to the customer Please Register or Log in to view the hidden image!
Only if said gaseous emissions are lighter than air. Evidence indicates that, given the stench, said gas is actually heavier than air...
well every day the Earth gets tons of matter from space . https://www.popsci.com/60-tons-cosmic-dust-fall-earth-every-day https://scitechdaily.com/earth-loses-50000-tonnes-of-mass-every-year/