Which three factors have the greatest effect on earth's climate? hints?

What type of coastline is commonly found along the western side of the america’s

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.

What factors of japan’s geography make it necessary for it to import so many goods?