Natural barriers are like the use of mountains or rivers to protect a place. but if you want to know what Egypt's are, I'd suggest putting that in your question.
Natural Barriers are features such as Rivers, Mountains, Oceans, Seas etc...
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.
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.
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.
Most of the borders of the U.S. are marked by oceans; the next most frequent natural barriers are rivers.