Acivilization exists in a mountain valley for several hundred years, developing its own languge in isolation from nearby civilizations. such a civilization probably has been;

a. suffering under a lack of contact with the outside world.
b. domesticating mountains goats.
c. protected from invasion by the mountains around it
d. starving from lack of trade

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

Russia is to the east if germany ? true or false

What is the largest river in the united states?