De ce cele mai intinse suprafete cultivate cu legume se afla in apropierea marilor orase?

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

Why does sweden and norway have steep roofs

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.