Mountains are the geographic feature that most effectively serve as a natural barrier that limits contact between cultures.
Geographic barrier is the barrier which cease the movement of any organism through it. Now as rodents which are not able to cross the river stay apart and develop into different species whereas the as the birds are able to fly the can cross this barrier and can cross with the birds of other part which did not lead the formation of new species of birds.
The Alps are a tremendous physical barrier for anyone who wanted to invade Italy from a land route. It is almost impassable in the winter (although Hannibal managed it with his troops, including his war elephants to surprise the Romans). On the other hand, it also meant it was difficult for the Roman Empire to relay troops to other parts of the Empire if needs be.
Sympatric Speciation develops within the range of the parent population. This type of speciation does not include geographical isolation, and can occur rapidly if a genetic change results in a barrier between the mutants and the parent population.
You should always keep the heaters away from fabrics or things that are flammable. I would also purchase some type of barrier to��separate��your children from the heaters as they can reach dangerous temperatures for infants.
Flyscreens are a barrier that stop flying insects from getting inside the home.
Pyrenees Mountains
The Pyrenees Mountains between France and Spain were an effective barrier to trade and cultural contact.
pyrenees mountains
· bayou · barrier island · bay · beach · bluff · butte
a transportation barrier is a geographic feature that prevents or slows transportation.
The Appalachian Mountains were this sort of geographic barrier.
The Appalachian Mountains were this sort of geographic barrier.
They're called " Barrier Islands "Source: I study geographic features of North America
The Appalachian mountains.
a indian maybe
i do not now the answer
The Great Barrier Reef