As for the first part, Cost, Radiation exposure to humans, No water or heat, and unfit soil. As for the second, Astronomers, Botanists, and obviously your fair share of rocket scientists and math matitions for the way up.
Mistakes are opportunities for growth
A pig and a spider have a baby and the owner of the farm wants to kill it . The spider dies
If you have the one that I had it would be: Each nation must decide for itself how it will meet it.
Hope this helps!
Napoleon Crossing the Alps
Napoleon Crossing the Alps (also known as Napoleon at the Saint-Bernard Pass or Bonaparte Crossing the Alps; listed as Le Premier Consul franchissant les Alpes au col du Grand Saint-Bernard) is any of five versions of an oil on canvas equestrian portrait of Napoleon Bonaparte painted by the French artist Jacques-Louis