One of japans natural barriers is that Japan is very mountainous. This could also be good for japan in case of a foreign invasion.
Their natural barriers surrounded them so they considered themselves to be in the middle of the world.
mountains
Some natural barriers that caused migration to be difficult are mountain ranges, canyons, and raging riversand kabobs and potatoes and brains and mushrumns
The gobi desert the yellow sea and mountains
please help
Japans natural resources are the ocean, the forest, and farming
The Natural Barriers in canada are Molten lava and cars
Oceans are some of the natural barriers in the planet.
The natural barriers and isolation allowed China to
no natural barriers are rivers, cliffs...... natural stuff not man made
Mountains and oceans are the natural barriers of western africa
Batman
unpredictable flooding of natural barriers for protection . Natural Resources limited.
Japan does not have much oil
monsoons
The body has a number of natural barriers, your skin, your eyelashes, mucus and even tears are all natural barriers to name but a few.
Most of the borders of the U.S. are marked by oceans; the next most frequent natural barriers are rivers.